The population of a village is 13400. It increases annually at the rate of 21% p.a. What will be its population after 2 years?  Options:
A) 10000  B) 12000  C) 19619  D) 18989  E) 14400

Rationale: "formula : ( after = 100 denominator ago = 100 numerator ) 13400 × 121 / 100 × 121 / 100 = 19619 c"
Answer: C