Study figure 10-1. the strong nuclear force felt by a single proton in a large nucleus a. is much greater than that felt by a single proton in a small nucleus. b. is much less than that felt by a single proton in a small nucleus. c. is about the same as that felt by a single proton in a small nucleus. d. is about the same as the electric force felt by a single proton in a small nucleus.

I Think the answer is 

A.) is much greater than that felt by a single proton in a small nucleus. 

Answer;

D. is about the same as the electric force felt by a single proton in a small nucleus.

Explanation;Nuclear force is the type of force that acts between the protons and the nucleus of atoms. Strong nuclear force is one of the four basic forces in nature, others being gravity, the electromagnetic force, and the weak force,  and is the strongest,Strong nuclear force functions to hold the subatomic particles that is the protons and the neutrons,of the nucleus together.The strong nuclear force felt by a single proton in a large nucleus is about the same as that felt by a single proton in a small nucleus.

Distillation.  distillation is the correct answer.