Part A Which statement is a main idea of “Dorothy Vaughan Biography”?

A. She helps write a manual about how machines do math.

B. Dorothy works equally with white and African-American women throughout her career.

C. She was a high school educator before joining NACA.

D. Dorothy deserves credit as a pioneer for her accomplishments at NASA.

Which quotation from the text best supports the answer to Part A?

A. “Vaughan came to the Langley Memorial Aeronautical Laboratory in 1943...leaving her position as the math teacher…”

B. “…she collaborated with other well-known (white) computers...on projects such as compiling a handbook for algebraic methods for calculating machines.”

C. “Dorothy Vaughan was assigned to the segregated West Area Computing unit, an all-black group of female mathematicians."

D. “…Vaughan was both a respected mathematician and NASA's first African-American manager.”