The frontal lobe of the brain is for driving a motor vehicle.
not necessary
a)
b)
c)
not used
essential

It is essential

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.