We know that elementary particles means Singal particles electromagnetic and gravitational force act between two particles and weak nuclear force is single small nucleus and strong nuclear force act in heavier elementary particles that's why option A correct

Explanation:

The four fundamental forces of nature are strong nuclear force, weak nuclear force, electromagnetic force, and gravitational force.

The stronger force among the heavier elementary particles is the strong nuclear force. It is the force that holds the nucleus of an atom together. This force is responsible for the binding of protons and neutrons in the nucleus. The strong nuclear force is much stronger than the electromagnetic force, which is responsible for the interaction between charged particles and is responsible for the binding of electrons to the nucleus.

The strong nuclear force is a short-range force, which means that it operates only over a very short distance. It is also a very attractive force, which means that it pulls particles together. This is why it is able to overcome the repulsive force between positively charged protons in the nucleus.

The strong nuclear force is carried by particles called gluons. These particles are exchanged between quarks, which are the building blocks of protons and neutrons. The strong nuclear force is also responsible for the creation of new particles in high-energy collisions, such as those that occur in particle accelerators.

In summary, among the four fundamental forces of nature, the strong nuclear force is the force that operates among the heavier elementary particles. It is responsible for holding the nucleus of an atom together and is much stronger than the electromagnetic force.