Explain the joke to me because I don't understand

Which georgia shipyard produced 88 liberty ships?

Any study/memorization tips? i have exams in a week and it would be great to try suggestions!you ; )

John recently received his semester grades and found that he had failed two courses. he says the reason he failed the two courses is that they were taught by female professors. john believes that women are really not smart enough to teach at the college level. in this example, the female professors are a) spacegoats and being blamed for john's grades b) being discriminatory toward john c) probably not smart enough to teach in a college d) prejudiced against john because he is male