What is the major product of the above Friedel-Crafts reaction?

The incorrect match is:

Compound $(B)$ is

The number of equivalents of Grignard reagent $(x)$ used in reaction $(1)$ is:

In the given reaction,$[X]$ will be:

Compound $A$ was prepared by oxidation of compound $B$ with alkaline $KMnO_4$. Compound $A$ on reduction with lithium aluminium hydride $(LiAlH_4)$ gets converted back to compound $B$. When compound $A$ is heated with compound $B$ in the presence of $H_2SO_4$,it produces a fruity smell of compound $C$. To which family do the compounds $A$,$B$,and $C$ belong?