The area of a circular field is 13.86 hectares. Find the cost of fencing it at the rate of Rs. 4.90 per metre.
Pick one:	A) 2399	B) 3888	C) 2999	D) 5808	E) 6468

Rationale: "explanation : area = ( 13.86 x 10000 ) sq . m = 138600 sq . m circumference = cost of fencing = rs . ( 1320 x 4.90 ) = rs . 6468 . answer : e ) 6468"
Answer: E