C he was a scientist who led the development of the atomic bomb
The answer is letter A. The California Alian Land Law of 1913 prohibits foreigners from owning lands, stocks and other properties. They were also not allowed to lease them for more than three years of tenure. Many Chinese, Indian, Japanese and Korean immigrant farmers were deeply affected of this law. This law was implemented to stop foreigners from immigrating, specially Japanese immigrants and to create an inhospitable climate with the other immigrants in California. Around this time, there was an on going Anti-Asian prejudice going on causing the implementation of this law.
The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first conquering the powerful Egyptian Ayyubid Sultanate, the strongest Muslim state of the time.