Consider the Following Generic Picture of an Atom

Multiple Choice

Consider the following generic picture of an atom. Which of the following is correct about the regions labeled 1 and 2?

A) Region 2 is populated by electrons and neutrons.
B) Region 2 is populated by electrons an protons.
C) Region 1 is populated by protons and neutrons.
D) Region 1 is populated by protons and electrons.
E) Region 1 is populated only by electrons and Region 2 only by protons.