Why the other options are wrong:

• long-term train delays across western Canada.: The report mentions minor delays during construction, but the story is not about long-term train delays across western Canada.
• growing wildlife populations in Jasper National Park.: The report talks about protecting wildlife from trains, not about wildlife populations growing in the park.
• a new passenger rail service in Alberta.: There is no mention of a new passenger rail service - CN is upgrading safety along the existing rail corridor near Jasper.

Correct Answer: six level crossings.

Why this is correct: The report says the project includes new warning lights and gates at six level crossings. This number is clearly stated by the company. The other numbers either come from different parts of the story or are made up.

Why the other options are wrong:

• fourteen level crossings.: Fourteen refers to kilometres of wildlife fencing, not the number of level crossings.
• four level crossings.: Four is not mentioned anywhere in the report.
• nine level crossings.: Nine refers to the number of wildlife incidents last year, not the number of crossings.

Correct Answer: in mid-July.

Why this is correct: The report says the work is scheduled to start on July fifteenth. Mid-July means the middle of July, which matches July fifteenth exactly. The report also says it should be done by October.

Why the other options are wrong:

• during the winter travel season.: The report says the work should finish before the winter travel season, not start during it.
• at the start of October.: October is when the work is expected to be completed, not when it begins.
• early next spring.: Next spring is when officials plan to release a public update, not when construction starts.

Correct Answer: the mayor of Jasper.

Why this is correct: The report says Jasper Mayor Helen Roberts welcomed the announcement and said the project will improve safety without significantly disrupting the community. She is the one who described it this way.

Why the other options are wrong:

• an RCMP spokesperson.: No RCMP spokesperson is mentioned in the report at all.
• a CN construction manager.: The report mentions CN spokesperson David Miller, but he talked about wildlife fencing, not community disruption.
• a Parks Canada wildlife officer.: No Parks Canada wildlife officer is quoted making this comment. The report attributes the safety-without-significant-disruption statement to Jasper Mayor Helen Roberts.

Correct Answer: to see if the safety measures work.

Why this is correct: The report says CN and Parks Canada plan to monitor the area through winter and release an update next spring. Officials say the results will help decide whether similar safety measures are added elsewhere. So the monitoring is to check if the safety upgrades actually work.

Why the other options are wrong:

• to decide whether to delay the project.: Monitoring is planned after the work is finished, with results guiding whether similar safety measures are added elsewhere. The report does not describe monitoring as a basis for deciding to delay the current project.
• to reduce train speeds permanently.: The report does not say anything about making reduced train speeds permanent.
• to plan a new passenger rail station.: There is no mention of planning a new passenger rail station anywhere in the report.