Even though champion table-tennis players can move their paddles at very rates, there are reasons to believe they adjust their ongoing strokes based on feedback. Two reasons are

A) Paddle positions are more variable at the start of the stroke than at the end, and adjustments to the ongoing stroke can be recorded based on visual information available during the stroke
B) Paddle positions are less variable at the start of the stroke than at the end, and adjustments to the stroke can be recorded based on visual information available during the stroke
C) Paddle positions are more variable at the start of the stroke than at the end, and adjustments to the stroke have not been recorded based on visual information available during the stroke
D) Paddle positions are less variable at the start of the stroke than at the end, and adjustments to the stroke have not been recorded based on visual information available during the stroke