Step 1: Understanding physical fitness components.
Physical fitness is typically broken down into five components: muscular strength, muscular endurance, cardiovascular endurance, flexibility, and body composition. Intelligence is not a physical fitness component.
Step 2: Analyzing the options.
- (A) Speed: Speed is an important component of physical fitness related to agility and performance.
- (B) Intelligence: Correct! Intelligence is a cognitive ability, not a physical fitness component.
- (C) Flexibility: Flexibility is a critical aspect of physical fitness, related to the range of motion of joints.
- (D) Strength: Strength is a fundamental component of physical fitness, related to muscle power.
Step 3: Conclusion.
Thus, the correct answer is \( \text{(B) Intelligence} \).