Right ! when investing in a savings plan, it is better to a. invest all the money you can in the beginning at the highest rate possible and do not add any other money. b. invest money in equal amounts over a long period of time at the highest rate possible. c. invest all the money you can in the beginning at the highest rate possible, and then add maoney periodically. d. invest all the money you can in the beginning at the highest compounding interest rate possible, and then add money periodically.