Answer: Option (C) is the correct answer.
Step-by-step explanation:
It is known that current is the flow of electrons or electric charges.
And when electric current flows through a wire or material then it generates a magnetic field outside the material.
Mathematically, B =

where B = magentic field
= magnetic permeability
r = radial distance
Therefore, we can conclude that a magnetic field is created by a charged particle that is moving.