Arnold learned something very valuable as a teenager from his dad. he was told to invest $1,250 at 8% interest at age 20 and leave it alone until age 65. arnold's dad knew that one strategy that wealthy people use is to exercise self-discipline to never touch this long-term plan. arnold is very happy he applied his dad's advice. if his savings had earned 14%, arnold's savings would be by age 68.question 8 options: a) $116,723b) $31,674c) $673,508d) $256,000e) none of these