The area of a circular field is 13.86 hectares. Find the cost of fencing it at the rate of Rs. 4.70 per metre.  Choose the correct choice from the following answers
A) 2399	B) 6204	C) 2999	D) 5808	E) 2888

Rationale: "explanation : area = ( 13.86 x 10000 ) sq . m = 138600 sq . m circumference = cost of fencing = rs . ( 1320 x 4.70 ) = rs . 6204 . answer : b ) 6204"
Answer: B