Answer:
a. The use of Greek mythical heroes for propaganda
Explanation:
The statue of Commodus is actually a statue of Hercules, the mythical greek demigod, and son of Zeus.
What the emperor Commodus intended with the statue, was to draw a comparison between himself and the figure of Hercules: what the Greek hero represents: strenghts and divinity.
For this reason, it can be said that the main function of the statue was to use Greek mythical figures for political propaganda.
