Step 1: Understanding the role of body balance
Body balance is a key component of motor performance. It refers to the ability to maintain the body’s position, whether in motion (dynamic balance) or at rest (static balance). It is especially critical in sports involving complex movement patterns or physical confrontation.
Step 2: Evaluating each sport
- (A) Gymnastics: Requires extreme balance for movements on beams, bars, and floor routines. Yes, balance is essential.
- (B) Chess players: Chess is a mental game and does not involve physical movement requiring body balance. No, balance is not a motor performance factor here.
- (C) Defensive position in Wrestling: Wrestlers must maintain stability while resisting takedowns or attacks. Yes, balance is crucial.
- (D) Diving: Requires control of body in air and precise entry into water. Yes, balance is essential.
Step 3: Final Answer
Therefore, body balance is an important motor performance factor in (A) Gymnastics, (C) Defensive position in Wrestling, and (D) Diving.
So the correct answer is Option 3.