Meaning: 'Reduce' means to make something smaller or less in amount, degree, or size, which in this context refers to lowering the amount of paper used in the office.

Wrong options:

• expand: 'Expand' means to increase in size or amount, which contradicts the goal of decreasing paper usage.
• diversify: 'Diversify' implies introducing variety, which does not align with the intent to decrease paper usage.
• complicate: 'Complicate' means to make something more difficult or complex, which is contrary to the goal of simplifying and reducing paper usage.

Correct answer: enhance

Explanation: The word 'enhance' is appropriate as it indicates an improvement in the waste management efforts, fitting well with the context of launching a recycling program. It conveys a positive action that aligns with the overall goal of sustainability.

Meaning: 'Enhance' means to improve the quality, value, or extent of something, which in this case refers to improving waste management efforts through recycling.

Wrong options:

• diminish: 'Diminish' means to make something smaller or less, which does not fit the context of improving waste management.
• overhaul: 'Overhaul' suggests a complete renovation or change, which is too strong for the context of enhancing existing efforts.
• diversify: 'Diversify' implies introducing variety, which does not directly relate to improving waste management.

Correct answer: conserve

Explanation: The word 'conserve' fits grammatically and contextually as it is a verb that means to protect from loss or harm, aligning with the goal of saving resources and reducing environmental impact.

Meaning: 'Conserve' means to use resources wisely and avoid waste, which is essential for reducing our environmental footprint.

Wrong options:

• squander: 'Squander' means to waste something in a reckless or foolish manner, which is the opposite of conserving resources.
• disregard: 'Disregard' means to ignore or pay no attention to, which contradicts the intention of being mindful about resource usage.
• waste: 'Waste' means to use something carelessly or extravagantly, which is contrary to the goal of conserving resources.

Correct answer: ethical

Explanation: The word 'ethical' is suitable as it describes suppliers who adhere to moral principles, aligning with the goal of ensuring eco-friendly office supplies. It fits the context of responsible sourcing.

Meaning: 'Ethical' refers to being morally right or good, particularly in the context of business practices that consider environmental and social impacts.

Wrong options:

• distant: 'Distant' refers to being far away or remote, which does not relate to the quality of suppliers being considered.
• generic: 'Generic' means lacking distinctive or unique characteristics, which does not convey the idea of responsible sourcing.
• competitive: 'Competitive' implies striving to gain an advantage, which does not align with the focus on ethical considerations in supplier selection.