The correct answer is A: leading hunger strikes, marches, and boycotts of crops.
Cesar Chavez was a civil rights activists for farmers and is widely recognized as one of the most famous Hispanic-American activists. He routinely went on fasts or hunger strikes like Gandhi did, to attract public attention to certain problems. He also organized boycotts and strikes like Martin Luther King Jr, to protest against pesticides and unfair labor laws. Cesar Chavez helped co-found the National Farm Association. He was majorly popular within the Hispanic community, especially on the west coast where many farmers were Mexican-American.
The emergence and spread of Islam threatened the power and prosperity of the Catholic Church from the beginning, i.e., the fall of Jerusalem in 636. From then on Muslim armies took all the important cities of Christianity, such as Damascus or Antioch. Muslim armies relentlessly attacked christianity centers, including the siege to Vienna in the 1520´s.
The Civil Rights Act of 1964 marked a huge turning point in the Civil Rights movement. This law made it so that employers could not discriminate against candidates based on race, gender, religion, or birth place. This law helped to ensure that African-Americans would be able to be judged based on their qualifications/skills rather than their skin color. Any employer who broke this law could face federal charges.