Biology

The correct answer is: B.Carbon, Hydrogen, & Oxygen

These three elements make up the majority of all four types of macromolecules:

1.Carbohydrates – Primarily made of carbon (C), hydrogen (H), and oxygen (O).

2.Proteins – While proteins also contain nitrogen (N), they still have a significant amount of carbon, hydrogen, and oxygen.

3.Lipids – Primarily composed of carbon, hydrogen, and oxygen (though some lipids may contain small amounts of other elements like phosphorus).

4.Nucleic acids (DNA/RNA) – Made up of carbon, hydrogen, oxygen, nitrogen, and phosphorus, but the majority of their structure comes from carbon, hydrogen, and oxygen.

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