A couple plans to save for their child (Sam)'s university education. They decide to make deposits into an educational savings account on each of Sam's birthdays. The educational savings account will return a constant 9%. The parents start depositing $2282 on Sam's first birthday and plan to increase the size of their deposits by 7% each year. The last deposit is made on Sam's 18th birthday. The amount available for Sam's university expenses on his 18th birthday is closest to O a. $152573.17 O b$163253.29 O c. $133362.16 O d. $32344.56