When may the batter be called for a batter-box violation?

• A. When the batter fouls off a pitch.
• B. When the batter steps out of the designated batter's box or violates box boundaries.
• C. When the batter swings and misses.
• D. When the runner is caught stealing.

Answer: (B)

The batter’s box sets where the hitter must stand during a pitch. A batter-box violation is called only when the batter leaves that area or crosses its boundaries—i.e., steps out of the batter’s box or touches outside the lines. The other events—fouling off, swinging and missing, or a runner being caught stealing—are unrelated to the batter’s position in the box, so they don’t trigger this violation.