Therefore would be the correct answer to your question...
After college, Katherine became a teacher. She taught school until she got married and had children. When her husband became very sick, she started teaching again to support her family. When Katherine was 34, she heard that NACA (later called NASA) was hiring African American women to solve math problems.
Answer:
i think it is B. but i might be wrong
Explanation:
Yes - the tense of a verb is tacked onto the end.
He had a dream that white people and black people should be equal