Question

before he became chancellor, hitler was imprisoned for a year for attempting to
assassinate the weimar government’s leader.
overthrow the weimar government.
buy votes for the upcoming election.
set the reichstag on fire.

Explanation:

Hitler was imprisoned after the Beer Hall Putsch, where he attempted to overthrow the Weimar government. The Reichstag fire happened later, and the other options (assassinating the leader, buying votes) are not accurate in this context.

Answer:

B. overthrow the Weimar government.