It cannot stand as a sentence on it's own.
Your answer is D.)
<span>What are the facts that support the main idea called?
Answer: Supporting details</span>
A.) context clues
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This is math, not English, but okay xD
"Two intersecting lines are perpendicular if and only if they form four 90 degree angles" would be my answer.
Answer:The Mexican-American labor leader and civil rights activist Cesar Chavez dedicated his life’s work to what he called la causa (the cause): the struggle of farm workers in the United States to improve their working and living conditions through organizing and negotiating contracts with their employers.
Explanation:
Committed to the tactics of nonviolent resistance practiced by Mahatma Gandhi and Martin Luther King Jr., Chavez founded the National Farm Workers Association (later the United Farm Workers of America) and won important victories to raise pay and improve working conditions for farm workers in the late 1960s and 1970s