Why the other options are wrong:

• only within national borders.: This excludes the explicitly described cross-border movements.
• only across international borders.: This excludes the explicitly described movements within states.
• only within one city.: The reported scope extends across borders and within states, not only within a city.

Correct Answer: neighbouring countries.

Why this is correct: The report says 100,000 Burundians fled into neighbouring countries since April. It does not establish a destination preference for a majority of all migrants.

Why the other options are wrong:

• another district within Burundi.: The stated group crossed into neighbouring countries, rather than another district within Burundi.
• nearby towns without crossing a border.: Staying inside the border does not match the reported move into neighbouring countries.
• the capital city of Burundi.: Burundi's capital is not the stated destination; neighbouring countries are.

Correct Answer: 232 million.

Why this is correct: The report gives 232 million international migrants worldwide in 2013. This is the global international-migrant count.

Why the other options are wrong:

• 13 million.: Thirteen million refers to Mexico-born people in the United States, not the global international total.
• 2 million.: Two million is not the stated global total; the report gives 232 million.
• 7.6 million.: The 7.6 million figure concerns Syrians displaced within their own country, not all international migrants.

Correct Answer: economic migrants.

Why this is correct: The report explicitly lists refugees, asylum seekers and economic migrants as categories in the international-migrant figure.

Why the other options are wrong:

• tourists on one-day visits.: One-day tourists are not the third category named in this list; economic migrants are.
• people displaced within their own country.: People displaced within their country are discussed separately as internally displaced people, not this international category.
• workers who never cross a national border.: The international figure concerns people crossing a border, not workers who never do.

Correct Answer: Germany and France

Why this is correct: Germany and France are named as hosting some of Europe's largest migrant populations. The report does not establish an exact top-two ranking.

Why the other options are wrong:

• the United States and Russia: The United States is discussed separately as the largest host worldwide; this is not the named European pair.
• Kazakhstan and Russia: Kazakhstan and Russia appear in discussion of former Soviet ties, not as the pair named in the Europe statement.
• Ukraine and China: Ukraine and China occur in other migration contexts, not as the pair named for Europe.