A teacher places a metal can on top of an insulating foam cup and touches the side of the cup with a negatively charged rod. The setup is shown in the picture below.
What will happen to the negatively charged electrons when the rod touches the foam cup?
A The electrons will transfer from the cup to the metal can, causing both the cup and can have a negative charge.
B The electrons will transfer to the cup and will remain in a concentrated, positively charged area on the cup where the rod was placed.
C The electrons will transfer to the cup and will remain in a concentrated, negatively charged area on the cup where the rod was placed.
D The electrons will transfer from the cup to the metal can, causing both cup and can to have a positive charge.