(A) Treatment of alkyl halide with alcoholic solution of potassium cyanide gives isocyanide.
(R) Cyanide are used for the preparation of anmines and amides.
A. If both A and R are correct and R is the correct explanation of A.
B. If both A and R are correct and R is not the correct explanation of A.
C. If A is the correct but R is incorect.
D. If A is the incorrect but R is corect.