Why Did Theodore Roosevelt Feel an Obligation to Enter Politics

Why did Theodore Roosevelt feel an obligation to enter politics as early as the mid-1880s?

A) His family had a long tradition of seeking public office.
B) His cousin had served in the Lincoln administration and he hoped to reach similar levels of public office.
C) He did not want to leave public office to the depraved and mediocre people that typically stood for election.
D) He saw a unique opportunity to gain a personal advantage in his future business career.