p-cresol reacts with chloroform in alkaline medium to give the compound A which adds hydrogen cyanide to form, the compound B. the latter on acidic hydrolysis gives chiral caboxylic acid. The structure of the carboxylic acid is

Options

A.
B.
C.
D.

Answer

C

Explanation

(-OH is more activating than `-CH_(3)` in o, p-directing, thus, -CHO goes to ortho w.r.t -OH).