One of the rules when drawing electric field lines is that electric field lines can never cross at a point in space. Which statement best explains why electric field lines cannot cross?

Can someone please explain how C is the correct answer. Thank You!

A. Field lines move away from positive charges and towards negative charges.

B. Field lines do not experience an attractive force to one another, so they cannot cross.

C. Crossing field lines unphysically implies that two different electric forces exist at the same point in space.

D. Crossing field lines unphysically implies that charges cannot exist in the surrounding environment.