Which one among the following statements about the coins of the Gupta rulers is correct ?

Options

A. The obverse and reverse, both, had only the king's portrait and date
B. The obverse and reverse, both, had only an image of a deity and date
C. The obverse generally had king's portrait and reverse had an image of a deity or a motif
D. The obverse generally had king's portrait and reverse always had a date