Which correctly shows where a semicolon is needed in the sentence?
a. the united states did not; have any women astronauts until 1978 however, the soviet union sent a woman into space in 1963.
b. the united states did not have any women astronauts until 1978 however, the soviet union; sent a woman into space in 1963.
c. the united states did not have any women astronauts until 1978; however, the soviet union sent a woman into space in 1963.
d. the united states did not have any women astronauts until; 1978 however, the soviet union sent a woman into space in 1963.