`PhMgBr+CH_(3)-CN underset(H_(3)O^(o+))rarr(A)Ph-overset(O)overset(||)(C)-O-Hunderset((2)H_(3)O)overset((1) "excess" CH_(3)-Li)rarr(A)`
Same product (A) will form in both reactions. A is :
A. `Ph-underset(CH_(3))underset(|)overset(OH)overset(|)(C)-CH_(3)`
B. `Ph-CHO`
C. `Ph-overset(O)overset(||)(C)-CH_(3)`
D. `Ph-CH_(2)-CO_(2)H`
