On 1 January 2012, Vivian borrowed money from his parents. He promised that he would repay the money with interests at 12% p.a. on 1 January 2018. The total amount that he was due to pay to his parents at that time was exactly $10,000 but he started his studies at university so he couldnt afford to repay the loan. If interest continues to accrue, what amount must Vivian pay on 1 January 2022 to fully pay off the loan?

Select one:

a. $32,125.68

b. $31,058.48

c. $18,012.30

d. $15,735.19