The ionization constant of ammonium hydroxide is $1.77\times10^{-5}$ at 298 K. Hydrolysis constant of ammonium chloride -

Question

( A ) $ 5.65 \times 10^{-12}$
( B ) $ 5.65 \times 10^{-10}$
( C ) $ 6.50 \times 10^{-12}$
( D ) $ 5.65 \times 10^{-13}$