The basic unit of speed is:

Options

A. km/min
B. m/min
C. km/h
D. m/s

Explanation

To determine the basic unit of speed, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Speed**:
- Speed is defined as the distance traveled per unit of time. The formula for speed is:
\[
\text{Speed} = \frac{\text{Distance}}{\text{Time}}
...