Question

bristle means :
a stiff fiber
a tax that is measured by the amount of business done
a sum of money paid in compensation for loss or injury
worthless or dangerous material that should be removed

Explanation:

The word "bristle" is a noun that refers to a stiff hair or fiber. For example, a brush has bristles. The other options describe different concepts: a tax measured by business done is a business - related tax concept; a sum of money for loss or injury is compensation; and worthless or dangerous material is waste.

Answer:

a stiff fiber