Answer:
D. China has a large and growing population.
Explanation:
The fact that China has a large and growing population does not necessarily hinder agricultural production. In fact, it could enhance it: for example, China may be a country where farms are very labor-intensive, requiring a large number of workers to produce food, and the rising population may represent a higher demand for food that motivates farmers to produce more.
All the other three options represent scenarios that do hinder agricultural production.
