C? No way. Never. Drop it down to the logo on her shirt. A part of the ball below the logo and I've got a strike. No part of the ball below the logo and I'm calling ball. That really misses a lot of the zone as described in NFHS (don't have the ASA rules here) but it is what I find most acceptable to batters, coaches, fans, and is easy for me to be consistent. Maybe it's the baseball in me. Calling strikes up around the shoulders always leads to excitement (negative).
NFHS 2-56-3
That space over home plate which is between the batter's forward armpit and the top of the knees when the batter assumes a natural batting stance. Any part of the ball passing through the strike zone in flight shall be considered a strike.
That is very close to a Slow Pitch strike zone - and is appropriate for that game. But I feel that zone is way to high for Fast Pitch.
Any discussion of the strike zone is always a bit misleading because we have a size to the ball (approx 4 inches diameter), to the plate (sides are 8.5 inches long), to the knees etc... and the flight of the ball is not a straight line
B? If the bottom of the ball is located at the bottom line drawn on your figure... the top of the ball is likely above the top of the knee - strike. If the center of the ball were at B... maybe. Top of the ball at B? No.
There is a lot of philosophical stuff that could be said here... and I started ... then erased it.
Pick a zone that your like and can justify in your mind, then enforce it... consistently. You'll never get more than minor comments if you can do it consistently.
