Which of the following is an incorrect IPv6 notation?

Which of the following is an incorrect IPv6 notation?

A.
FACE.:344:0::3389

B.
FACE.122::23:DAC2:3389

C.
FACE.122:0:344::23:DAC2:3389

D.
FACE.122:0:344:0:23:DAC2:3389