What is synergistic interaction?

When two chemicals are mixed, their effect is more than the summation of the effect of the individual chemical taken in the same amount. This is termed as Synergistic interaction.

Explanation:

Synergistic interaction is a two - way effect in which the effect of one over the other substances is taken into consideration.  For example, carbon tetrachloride and ethanol taken separately are equally injurious to the liver. But when both the chemicals are taken as a combination, they produce greater harm to the liver.

absolute strength refers to the maximum force exerted by a body irrespective of body size. relative strength on the other hand is the force exerted by a body in relation to muscle size or body weight.

so the answer is: c. absolute strength measures strength regardless of your body size, while relative strength measures strength adjusted for your weight.