What is the difference between the C.I. on Rs. 7000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly?	Choose the correct choice from the following answers:
A) s.2.04
B) s.2.08
C) s.2.02
D) s.2.86
E) s.2.42
C.I. when interest is compounded yearly   = [7000 * (1 + 4/100) * (1 + (1/2 * 4)/100]   = 7000 * 26/25 * 51/50 = Rs. 7425.6   C.I. when interest is compounded half-yearly   = [7000 * (1 + 2/100)2]   = (7000 * 51/50 * 51/50 * 51/50)   = Rs. 7428.46 Difference   = (7428.46 - 7425.6)   = Rs.2.86.   Answer: s.2.86
<result>D</result>
What is the difference between the C.I. on Rs. 7000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly?