I will definitely choose option three because option three is always increasing 2 times more than the previous day, this means that if you are on day four then you will get 8p and one day 5 you will get a lot more which is 16p. This means that on day 31 you will get 1073741824 p and for option 1 you will only get £10 on the 31st day and for option 2 you will get £18 on the 31 st day. As you can see there is a big difference between option one and two you will get way less money on day 31 than option 3.
After 10 days the sum of option 3 is: £1.023
After 10 days the sum of option 2 is: £52.5
After 10 days the sum of option 1 is: £100
After 30 days the sum of option 3 is £ 21474837
After 30 days the sum of option 2 is £325.5
After 30 days the sum of option 2 is £310
This means if you chose option 3 then it will only take you 30 days to become a millionaire.