SI : 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
- AR P S Q
- BR Q S P
- CQ S P R
- DP R S Q
Explanation
R responds to S1: the proposed amendment tries to tighten the rules but has gone overboard. Q concedes the other side: no one denies pesticides' importance in agriculture. S supports Q: nearly a fourth of the crop is still lost to pests and weeds. P concludes that a more practical, feasible approach is required. S6 adds the parallel point: pollution control is also needed against other industries. Hence RQSP, i.e. option B.