Critical reading – motor skills in adulthood The text notes that by adulthood most people can perform many motor-skill activities (e.g., riding a bicycle, threading a needle, cooking), all of which depend on precise, well-timed muscular movements. What statement is best supported?

Introduction / Context:
The paragraph provides examples of motor skills and defines their common feature: dependence on precision and timing. A supported answer will rest directly on this definition and the examples given.

Given Data / Assumptions:

• By adulthood, most people can perform many motor activities.
• Examples include riding a bicycle, threading a needle, cooking a dinner.
• All such activities depend on precision and timing of muscular movement.

Concept / Approach:
Since threading a needle is explicitly listed as a motor-skill example, and motor skills are defined as precise, it follows that threading a needle is a precise motor skill.

Step-by-Step Solution:
Identify the example: threading a needle.Apply the general definition: motor skills depend on precision and timing.Conclude: threading a needle is a precise motor skill.

Verification / Alternative check:
Any example included in the set inherits the set’s defining property; therefore the conclusion is secure.

Why Other Options Are Wrong:

• A: Contradicts “most people can perform many activities.”
• B: “All adults ride” is stronger than “most can perform many.”
• C/D: The passage does not compare adults to children nor limit precision to adults.

Common Pitfalls:
Over-generalizing beyond the text (e.g., “all adults,” comparisons with children).

Final Answer:
threading a needle is a precise motor skill.