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In the give n reaction scheme, P is a phenyl alkyl ether, Q is an aromatic compound ; R and S are the major products. P    HI Q       O H ) iii ( CO ) ii ( NaOH ) i ( 3 2 R         O H ) ii ( O ) CO CH ( ) i ( 3 2 3 S The correct statement about S is

1. It primarily inhibits noradrenali ne degrading enzymes.
2. It inhibits the synthesis of prostaglandin.
3. It is a narcotic drug.
4. It is ortho - acetylbenzoic acid.

Correct answer: It inhibits the synthesis of prostaglandin.

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