If one was estimating a simple regression of Earnings (Y) on Height of individuals (X), and got a coefficient on the Height variable of 30 , what would the intercept be if you added 3 inches to every individual in the sample but kept their earnings the same? Select one: a. Below 30 , but not enough information to tell exactly. b. None of these choices are correct. c. 30 d. Above 30 , but not enough information to tell exactly