[I_Have_No_Idea]

I had a test, and i got marked down on it for a question that is 100% right. It was about the attractive pulls of protons on electrons, and asked if protons were putting any force on the electrons. I answered no force, because the forces of them cancel out but got marked down for it, and even after talking to my teacher she still refuses to mark my answer as correct. I was wondering if you guys could help me prove that the proton and electron are not putting any force on each other.
I hope that if more people support me i can get some free points, and back up my logic with more facts. Also I tried to talk to my teacher, but they didn't listen even after i pulled up a bunch of articles about how the electron puts out an opposite force equal to what the proton puts out. Here is the question for reference.  Sadly i cant post the photo, but the + refers to a proton and the - to an electron.
10Multiple Choice
0/ 1
(1-3, 1-7) What is the force between the "+" and "-" in the diagram above?   
   repulson
   attraction
   no force   

[I_Have_No_Idea]

Btw, i hit the no force button as the electron repels the protons force causing a net force of 0.

[Meter]

You could probably argue that there is no net force, but that doesn't mean that there aren't any forces. Although I'm skeptical of premise of the question to begin with.

[mjc123]

Protons and electrons attract each other; that's elementary physics. The proton exerts an attractive force on the electron, and the electron exerts an attractive force on the proton. These forces do not cancel each other out. "Electron repels the proton's force" is just nonsense.

There may be "no net force" on the proton-electron system as a whole, but the proton and the electron still attract each other.