Over the period under study both percentages of the total agri-exports to the total exports and that of the total agri-imports to the total imports show a downward trend. This indicates that

A country should always be looking to export as much as possible and import as less as possible. As the import is decreasing, it is a positive sign. But the export is also decreasing, which is not a good sign.

Option A doesn't issue the address in hand and shifts focus.

Option B is totally the opposite.

Option C is partially right but limiting exports is not a good choice.

Option D is the solution to the problem.