A major portion of cash flow that country M yields is through agricultural activities. However, in the past half a decade the revenue earned from agriculture has noticeably reduced." — A report. Which of the given statements may be a reason for the given situation?

A. Country M is employing new techniques to yield good crop and boom the productivity.

B. Country M has faced two major droughts in the last five years.

C. The revenue from other industries has increased in the past five years.