Adam invested $12,000 in a six-year cd that paid 7.1% interest, but later needed to withdraw $2,500 early. if the cd’s penalty for early withdrawal was eighteen months’ worth of interest on the amount withdrawn, how much of a penalty did adam pay? a. $138.89 b. $177.50 c. $266.25 d. $319.50 please select the best answer from the choices provided a b c d