If the dispersion is small, the standard deviation is:

Large
Zero
Small
Negative

The correct answer is C. Small.

The standard deviation is a measure of how spread out a set of numbers is. A small standard deviation indicates that the numbers are clustered closely together, while a large standard deviation indicates that the numbers are spread out over a large range.

If the dispersion is small, then the numbers are clustered closely together. This means that the standard deviation will also be small.

Option A is incorrect because a large standard deviation indicates that the numbers are spread out over a large range.

Option B is incorrect because a standard deviation of zero indicates that all of the numbers are the same.

Option D is incorrect because a standard deviation cannot be negative.