If A lends Rs.3500 to B at 10% per annum and B lends the same sum to C at 11.5% per annum then the gain of B in a period of 3 years is?  Choose the correct answer:
A) 157.20	B) 157.29	C) 157.50	D) 157.30	E) 157.23

Rationale: "( 3500 * 1.5 * 3 ) / 100 = > 157.50 answer : c"
Answer: C