Answer: Impeachment
Explanation:
Congress can remove a President from office if there is a belief amongst lawmakers that the President is no longer fit to hold power.
The House of Representatives will vote to impeach the president and if a majority vote for the impeachment, the President will be impeached after which the process passes to the Senate which then holds a trial and votes on removing the President.
If two-thirds of the Senate present votes to remove the President, the President will be removed from power.
Ruomei's new liking for biology has been conditioned.
She was 'conditioned,' aka learned to love biology because of the guy she has a crush on. Previously, she wasn't interested in biology, but when she started liking this guy, she somehow connected her attraction to him to her growing love for biology. Thus, the guy was her stimulus to become conditioned to love biology.
The answer would be c. Here