Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Lipids may consist of fatty acids alone, or they may contain other molecules as well. All biological membranes contain lipids as the major constituent. All biological membranes have lipids as the main consituent which consist of fatty acids.
 The question and answer:
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What is the major thing that biological membranes consist of?
Options:
- (A) chemicals
- (B) glucose
- (C) lipids
- (D) Energy
- (E) complex
- (F) oxygen
- (G) matter
- (H) an ion
The answer is (C)
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