Identify the one which is not a reflex action.

Options

A. Salivation on the sight of food
B. Weight lifting
C. Closing the eyelids when an object comes across suddenly.
D. Typing by a professional

Answer

### Step-by-Step Solution:

1. **Understanding Reflex Actions**: Reflex actions are involuntary movements that occur in response to a stimulus. They are typically quick and do not require conscious thought.

2. **Identifying Examples of Reflex Actions**: Common examples include:
- **Salivation at the sight of food**: This is an involuntary response where the body prepares for food intake.
- **Closing of eyelids when an object approaches**: This is a protective reflex that happens automatically to prevent injury.
- **Typing by a professional**: For someone who has practiced typing extensively, this action can become automatic and is often considered a reflexive action due to muscle memory.

3. **Analyzing the Options**: The question asks to identify which action is NOT a reflex action.
- **Salivation**: Reflex action (involuntary).
- **Closing of eyelids**: Reflex action (involuntary).
- **Typing by a professional**: Reflex action (involuntary due to muscle memory).
- **Weight lifting**: This is a voluntary action that requires conscious effort and control.

4. **Conclusion**: Among the given options, weight lifting is the only action that is not a reflex action. It requires voluntary control and is not an automatic response to a stimulus.

### Final Answer:
**Weight lifting is not a reflex action.**

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