Artificial Selection for Agricultural Efficiency

Steps:

• Define artificial selection as human-directed breeding to enhance desirable traits in crops or livestock.
• Identify farmers' goals: maximize output like yield while minimizing inputs like fertilizers for cost savings.
• Analyze choices for outcomes that align with breeding benefits, such as higher productivity and resource efficiency.
• Select option listing yield increase paired with reduced fertilizer needs.

Why D is correct:

• Artificial selection breeds plants for higher yield and better nutrient efficiency, reducing fertilizer requirements per definition of selective breeding for optimized traits.

Why the others are wrong:

• A: Lists contradictory fertilizer uses, which artificial selection does not aim to increase alongside decreases.
• B: Repeats growth rate redundantly without clear efficiency gains tied to selection.
• C: Includes pesticide use as an input, but selection targets inherent resistance over chemical reliance.

Final answer: D