A carbonyl compound P which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R,which undergoes intramolecular aldol reaction to give predominantly S. Poverset((i)MeMgBr)undersetunderset((iii)H_(2)SO_(4),"heat")((ii)H^(+),H_(2)O)rarrQoverset(O_(3)//Sn^(-),H_(2)O)rarrRoverset(OH^(-))underset("heat")rarrS. The structure of the carbonyl compound P is

A carbonyl compound P which gives positive iodoform test, undergoes re

1.	A carbonyl compound P which gives positive iodoform test, undergoes reaction with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R,which undergoes intramolecular aldol reaction to give predominantly S. Poverset((i)MeMgBr)undersetunderset((iii)H_(2)SO_(4),"heat")((ii)H^(+),H_(2)O)rarrQoverset(O_(3)//Sn^(-),H_(2)O)rarrRoverset(OH^(-))underset("heat")rarrS. The structure of the carbonyl compound P is
Answer» ANSWER :A::B