Tiberius Chose to Commemorate in Pictorial Form the Double Suovetaurilia

Tiberius chose to commemorate in pictorial form the double suovetaurilia that both he and Augustus performed because

A) he wanted to distinguish carefully his own sacrifice from that of Augustus's.
B) it was an occasion during which Augustus and Tiberius appeared in public as equals.
C) it was the event during which Augustus adopted Tiberius and legitimized his succession.
D) it was a way of depicting the apotheosis of Augustus performed at the beginning of Tiberius's rule.