1. John had an loan plan shown in the following discrete cash flow diagram: $2,000 $1,000 $3,000 ? ↑ 5 1 2 3 4 6 8 Years $1,500 $2,000 a. Please describe this diagram in terms of borrowing and payback. b. How much does John need to pay to totally payoff the loan at the end of year 8 if the interest rate is 6%? c. If John pays the same amount of money at year 8, how much can John borrow at year O without paying back in between with the same interest rate?