Barb and Andy are twins. Barb invests $5,000 at 7 percent when she is 25 years old. Andy invests $5,000 at percent when he is 30 years old. Both investments compound interest annually. Both Barb and Andy plan to retire at age 60. Which one of the following statements is correct assuming that neither Barb nor Andy has withdrawn any money from their accounts? Barb will have less money when she retires than Andy. O Andy will earn more compound interest than Barb. O If both Barb and Andy retire at the same time, then their savings will be equal CO Barb will have more money than Andy as long as they retire at the same time O Andy will earn more interest on interest than Barb.