Marriage: According to Pew Research, in 27% of marriages, the woman has a bachelor's degree and the marriage lasts at least 20 years. According to the Census Bureau, 35% of women have a bachelor's degree. What is the probability a randomly selected marriage will last at least 20 years if the woman has a bachelor's degree?
a) 27%
b) 35%
c) 52%
d) Cannot be determined from the given information.