Evaluate Where F(x, Y, Z) = 3x I $\sigma$ Is That Portion of the Sphere X² + Y²

Multiple Choice

Evaluate where F(x, y, z) = 3x i + 3y j - 6z k and $\sigma$ is that portion of the sphere x² + y² + z² = 9 which lies above the xy-plane and is oriented by upward unit normals.

A) 12
B) 12 $\pi$
C) 9
D) 0
E) 6