Which is a characteristic of a catalyst?

Some properties of catalysts are:

1. A catalyst improves the speed of a reaction.

2. A catalyst takes part in the reaction even though it will not be consumed or used up in the course of the reaction.

3. A catalyst makes the reaction faster by giving an alternative path with lower activation energy.

4. In a reversible reaction, a catalyst accelerates the reaction in both directions. Therefore, the inclusion of a catalyst will not change the equilibrium point.

Thus the only the third statement is true.

The correct option is C.