Given below are two statements, one labeled as Assertion (A) and the other labeled as Reason (R). **Assertion (A):** The inner mitochondrial membrane is folded into numerous finger-like projections called cristae. **Reason (R):** These folds significantly increase the surface area of the inner membrane to accommodate a high density of electron transport chain complexes and ATP synthase molecules. In the context of the above statements, which of the following is correct?

Options:

• A: Both (A) and (R) are true and (R) is the correct explanation of (A)
• B: Both (A) and (R) are true but (R) is not the correct explanation of (A)
• C: (A) is true but (R) is false
• D: (A) is false but (R) is true

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