evaluate the integral c (x^3 +y^3) dS along the curve C : r(t)=e^t I + e^-t j (0,<=t<= ln2). option a) 64/63 square root 17 + 1/4 ln(4+square root 17) -1/4 tanh^-1 (1/17 square root 17) . option b) 63/64 square root 17 + 1/4 ln( 4+square root 17)-1/4 tanh^-1(1/17 square root 17). option c) 74/64 square root 12 + 1/4 ln(4+square root 17)- 1/4 tanh^-1 (1/17 square root 17). option d) 63/64 square root 17 + 1/4 ln(4+square root 17)- 1/4 tanh^-1 (1/16 square root 17)