Assertion Bond angles of `NH_(3),PH_(3),AsH_(3)` and `SbH_(3)` decrease in order as mentioned
Reasoning The central atom in each possesses a lone pair .
A. Both A and R are correct and R is the correct explanation of A
B. Both A and R are correct and R is not the correct explanation of A
C. A is correct R is wrong
D. A is wrong R is correct