STATEMENT-1: `Co^(+2)` form octahedral stable complex with excess KCN.
and
STATEMENT-2: `CN^(-)` is stronger ligand than `NH_(3)` .
A. Statement-1 is True , Statement-2 is True , Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True , Statement-2 is True , Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True , Statement-2 is False
D. Statement-1 is False , Statement-2 is True