You are planning to purchase a house for your son on his 21st birthday. He is now 11 years old. The house you will purchase for him will cost 300,000,000. You are thinking of two options. a. To deposit a lump sum which will grow to the amount required. b. To deposit each year a fixed amount to accumulate to the required amount. Required: If the interest rate is 15%, how much do you need for each option?