Apply Green's Theorem to Evaluate the Integral $$\oint _ { C } ( 6 y d x + 8 y d y )$$

Multiple Choice

Apply Green's Theorem to evaluate the integral.
- $$\oint _ { C } ( 6 y d x + 8 y d y )$$
$C$ : The boundary of $0 \leq x \leq \pi , 0 \leq y \leq \sin x$

A) 4
B) 2
C) 0
D) -4