What Was the Political Compromise Made by Augustus in 23

What was the political compromise made by Augustus in 23 b.c.e. ?

A) He stopped dominating the position of consul, becoming a proconsul and tribune instead.
B) He voluntarily relinquished his option of veto in the Senate.
C) He agreed to maintain control of the legions only in Spain, Gaul, and Syria, and allowed the senate control of all others.
D) He purposely refused the title of praetor to alleviate the worries of senators that he would become like Sulla.
E) He offered to resign from all offices since he had stabilized the Republic.