The correct choice is (d) Indomethacin
The best I can explain: Anti-inflammatory drugs are of five kinds and these are salicylates, phenylpropionic acids, pyrazalone derivatives, indole derivatives and disease modifying drugs. Example of indole derivative drugs are indomethacine. ASA comes under salicylates. phenylpropionic acids e.g., ibuprofen, ketoprofen, pyrazalone derivatives e.g., phenylbutazone, disease modifying drugs: e.g. chloroquine.