2. Undertake that it is now 1 January 2017. On 1 January 2018, Dr. Lwipa Chishimba proposes to deposit K18, 000 into a savings account at Banc ABC paying an 18% interest rate. Required: a. Assuming that Banc ABC compounds interest annually, how much will Dr. Lwipa have in his savings account on 1 January 2021? b. What would Dr. Lwipa's 1 January 2021 balance be if the banc ABC used quarterly compounding rather than annual compounding? c. Presume Dr. Lwipa deposited the K18, 000 in 4 payments of K4, 500 each on 1 January 2018, 2019, 2020 and 2021. How much would he have in his savings account on 1 January 2021 , based on 18% annual compounding? d. Adopt that Dr. Lwipa deposited 4 equal payments in his savings account on 1 January 2018, 2019, 2020 and 2021. How large would each of his payments have to be for Dr. Lwipa to obtain the same ending balance as the one calculated in part (a) above