The answer would be the first one
Answer: The nucleus.
Explanation: In an atom, there are two main parts, the nucleus and the electron cloud/electron shells. The protons and neutrons are located in the nucleus, and the electrons are located in the electron shells/cloud/whatever.
Do you have Any answer choices
They need approximately 70 grams of protein in their diet
I'm pretty sure italy, england, spain, portugal, ireland.