Statement
The world will have to feed more than a billion people in the next century, of whom half will be in Asia and will eat rice as their staple food.
Courses of Action
I. More funds should immediately be allocated for rice research to help ensure adequate supplies.
II. The people in Asia should be encouraged to change their food habits.
III. The rice should be grown in countries outside Asia to meet the demand.

As in next century the increased population will have to feed more rice, so it is necessary to allocate funds for rice research. Therefore, I and III follow. All courses of action logically follow. First of all, the water of ponds should be treated to identify the nature of the virus. Since the problem is being faced, so the catching of then shrimps from the ponds should be temporarily stopped. Also, the fisherman should be asked to watch for the onset of such phenomenon in nature.