Final answer:
The strong nuclear force attracts electrons towards the nucleus in an atom.
Step-by-step explanation:
The influence of the strong nuclear force on the electrons in an atom is that it attracts them toward the nucleus (Option a). The strong nuclear force is a fundamental force that holds protons and neutrons together in the atomic nucleus. While the strong nuclear force does not directly interact with electrons, it indirectly affects them by keeping the nucleus stable and creating an attractive force that pulls electrons towards it.