Therate of simple interest for first two years is 8% p.a., for the next 4 years,it is 10% p.a. and for the period beyond 6 years,it is 12% p.a. Ifa person gets ₹18358.60 as simple interest after 9 years, then how much money (in ₹)did he invest?

A

20087

B

19674

C

19955

D

21075