Hello. This question is incomplete. The full question is:
"Which statement is true about nitrogen and oxygen? A. They make up about 99.9% of the human body. B. They are both made of protons, neutrons, and electrons. C. They are both used to make water molecules. D. Neither contains subatomic particles."
Answer:
B. They are both made of protons, neutrons, and electrons.
Explanation:
Nitrogen and oxygen are elements known to all of us. An oxygen molecule is an oxygen atom and a nitrogen molecule is a nitrogen atom.
As we know, all atoms are formed by three particles: protons, neutrons and electrons. For this reason, we can say that both oxygen and nitrogen are composed of protons, neutrons and electrons. For this reason, the letter B is the correct alternative.
