Question on Equilibrium Constant

The equilibrium constant at 298 K for a reaction \(A + B \leftrightharpoons C + D\) is 100. If the initial concentration of all the four species were 1M each, then equilibrium concentration of D (in \(mol L^{–1})\) will be:

A) 0.818

B) 1.818

C) 1.182

D) 0.182