Answer:
C). The total amount of land devoted to the production of agricultural crops declined in all three regions.
Explanation:
The third option most aptly describes that how the 'the total amount of land devoted to producing agricultural crops underwent a major downturn in all the three regions i.e. Middle East, China, and India during 12th and 13th century due to the spread of cultivation of rice. It demonstrates that the increasing demand for rice led to increased cultivation of rice and as a consequence, the land alloted to other agricultural crops reduced significantly during the period. Thus, option C is the correct answer.
