Answer:
(d)MWR is greater than TWR, and TWR is the more appropriate measure for Carl
Step-by-step explanation
since he is investing in between the year and he is earning 18% return which is higher than the 8% return on his early initial investment so time weighted return would be lower than that of the money weighted return because he is making money on the initial investment at interest that is lower than the interest rate which has been made by him in the middle of the investment period.
money weighted return is not as appropriate as time weighted written because time weighted return always takes into account the proper withdrawals and amount invested in between.