Evaluate Where F(x, Y, Z) = 4y I $\sigma$ Is That Portion of the Cylinder X² + Y² =

Multiple Choice

Evaluate where F(x, y, z) = 4y i + 8x j + 4xy k and $\sigma$ is that portion of the cylinder x² + y² = 9 in the first octant between z = 1 and z = 4. The surface is oriented by right unit normals.

A) 0
B) 4
C) 162
D) 8
E) -32