On your 21st birthday, your loving grandparents offer you a generous present via a trust account. This account has the following optiohs. * Option 1: $10,000 now * Option 2: $15,000 on your 25th birthday * Option 3: $500 a year in perpetuity * Option 4: $1,500 a year until you turn 30 with the first payment now and the last payment on your 30th birthday. (a) You reckon that in the current market condition, you can invest your money at 6% per annum. Which option would you choose? (6 marks)