In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

[EX Q]: This man achieved full power within his party at the Zunyi Conference. That conference occurred while this man and other members of his party were traveling from Jiangxi (jee-AHNG-shee) to Yanan as part of the Long March. This leader's third wife was part of an influential group that was named the Gang of Four. This ruler was responsible for his country taking part in the (*) Great Leap Forward and the Cultural Revolution. For 10 points, name this political rival of Chiang Kai-shek who was the first leader of Communist China.
[EX A]: History

[EX Q]: The vertical component of the effect caused by this force is sometimes named for Eotvos. The ratio of inertial forces to the magnitude of this force is a dimensionless number named for Rossby. This force causes the apparent (*) deflection of objects moving in rotating reference frames. For 10 points, name this fictitious force that causes winds to deflect to the north and south of the equator, which is responsible for the formation of cyclones.
[EX A]: Science

[EX Q]: A small value for the Rossby number indicates a significant effect caused by this force. Its root cause is the unequal rates of rotation for the Earth; the fastest rate is at the equator thus causing an object traveling south from the equator to deviate westward. The effect of this force is proportional to two times the rotation rate of the Earth times the sine of the angle of the latitude, thus this force causes no effect at the equator. For 10 points, name this apparent deflection of an object by inertial forces in a rotating frame of reference which is partially responsible for the rotation of hurricanes but not the flow of water in a toilet.
[EX A]:
Science