B) moves in a circular motion to form a vacuum in its center.
Explanation:
What is a vortex shape? A vortex is like a hurricane shape. Do you know what black holes are? A black hole is a vortex. Basically what it does is, it sucks everything within its reach into its center. Fun fact: once you go into a black hole, you never come out. No one knows why.
A vortex is kind of like a cone shape. In this case, the batter was circling and circling (like a black hole), until it was rotated down the funnel (the center, like a black hole's center), and into the hot oil.