S1: There is no doubt that the rules governing imports, manufacture and the use of pesticides need to be further tightened up.

S6: At the same time, better pollution control measures are needed to check the discharge of poisonous gases and chemicals by a host of other industries which are equally responsible for poisoning our world.

P: But a more practical and feasible approach is required to tackle this problem.

Q: No one can deny the importance of pesticides in our agriculture.

R: The proposed amendment is an attempt at doing this, but in the process it seems to have gone overboard in most cases.

S: Even today, nearly a fourth of our crop is lost due to pests and weeds.

The proper sequence should be

Options