gijoedude
The only way to reduce dependence is to reduce consumption. If you don't consume wheat, then you are not tied to what's happening in the international market.
The answer is E. There is a very similar question with oil imports in USA in the Verbal Review 2nd Edition.
Obviously the only way to reduce dependence on something is to stop consuming it!
However, the question doesn't refer to dependence, it refers to
reducing the long-term economic of price increases.
I.e.
You are dependent on oil, you stop consuming oil.
You want to reduce the long term economic impact of oil price increases. Stopping consumption is one option (but incredibly difficult to achieve), I would suggest stock piling oil is another (not perfect, but you can control the market at certain poitns through increasing local supply)
suppose counrty A requires 100 kgs of wheat every year, they produce only 70 kgk @ 5$ per kg
but international prices are 8 . so imported wheat to meet the demand is 30*8 = 240
E: if we reduce our consumption from 100 to 70kgs , we are self sufficient , we dont need to import wheat .
so the total amount will only be $ 350.
this is the only option that reduces long term economic impact on the nation because of higher international prices.