If We Describe the Double- Slit Experiment Entirely in Terms

Multiple Choice

If we describe the double- slit experiment entirely in terms of electrons instead of in terms of fields, then which of the following is the best description of what one individual electron does in this experiment?

A) It doesn't go through the slits at all.
B) It goes through either one or the other slit, and the observer does know which one it actually goes through.
C) It goes through both slits.
D) It turns into the tooth fairy.
E) It goes through either one or the other slit, but the observer does not know which one it actually goes through.