A rectangular lawn whose length is twice of its breadth is extended by having four semi-circular portions on its sides. What is the total cost (in ₹) of levelling the entire lawn at the rate of ₹100 per square metre, if the smaller side of the rectangular lawn is 12m?(Take $$\pi = 3.14 $$)

A

85,320

B

78,650

C

86,540

D

97,625