Load is ............

Options

A. exerted by machine
B. resistive force to be overcome by machine
C. external agency supplied to the machine
D. none of the above

Explanation

To solve the question "Load is ............", we need to analyze the options provided and understand the concept of load in the context of simple machines.

### Step-by-Step Solution:

1. **Understanding the Concept of Load**:
- In the context of machines, the term "load" refers to the resistance or force that the machine needs to overcome in order to perform work. This could be the weight of an object that needs to be lifted or moved.

2. **Analyzing the Options**:
- **Option A: Exerted by machine**: This option suggests that the load is something that the machine exerts, which is incorrect. The load is what the machine works against.
- **Option B: Resistive force to be overcome by machine**: This option correctly describes the load as the force that the machine must overcome to perform its function.
- **Option C: External agency supplied to the machine**: This option implies that the load is an external force applied to the machine, which is not accurate. The load is not supplied; it is the force that needs to be overcome.
- **Option D: None of the above**: This option would be incorrect since we have identified a correct definition in option B.

3. **Conclusion**:
- Based on the analysis of the options, the correct answer is **Option B: Resistive force to be overcome by machine**. This aligns with the definition of load in the context of simple machines.

### Final Answer:
Load is the resistive force to be overcome by the machine.

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