Yes, some words that usually nouns can function as adjectives. That is true.
Answer: "Happiness is a perfume you cannot pour on others without getting a few drops on yourself," mused Ralph Waldo Emerson.
Explanation:
comma goes inside the quotes
The March on Washington for Jobs and Freedom was the largest civil rights protest in US history, and contributed to the successful implementation of the Civil Rights Act of 1964 and the Voting Rights Act of 1965.
your answer would be B. themselves