Asertion (A) : Vinyl chloride can be differentied from ethyl chloride by alcoholic `AgNO_(3)` solution.
Reason (R ) : Chlorine atom in ethyl chloride is inert while it is labile in vinyl chloride.
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not a correct explanation of A
C. A is true but R is true
D. A is false but R is true