Multi-choice problem: Continue writing the next sentence in this paragraph:

How to throw a great two seam fastball
Place your index finger and middle finger on the seams.
Find the part of the seams where the gap between them is narrowest. Lay each finger so it runs parallel with one of the seams.

Select from the following.
(a). Using your thumb, apply pressure to pull them apart. Continue to pull them apart until they are not touching, for okay.
(b). Alternate with the other two seams. Keep alternating between both seams to get the ball where you want it to be.
(c). The horseshoe shape of the seams should be opened upward. Experiment with your fingers resting just inside the seams as opposed to directly on top of them.
(d). The seam should be about level with the rest of the seams. Use your thumb to create a small pocket.
(c).