For a system of partice, the vector sum of all the internal forces is....A... Here, A refers to

Options

A. Non zero
B. Infinite
C. Zero
D. None of the above

Explanation

To solve the question regarding the vector sum of all the internal forces in a system of particles, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Internal Forces**:
- Internal forces are the forces that the particles within a system exert on each other. According to Newton's third law, for every action, there is an equal and opposite reaction. This means that if particle A exerts a force on particle B, then particle B exerts an equal and opposite force on particle A.

2. **Applying Newton's Third Law**:
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