Given below are two statements, one labelled as Assertion (A) and the other labelled as **Reason (R):** Assertion (A):** The pyramid of energy is always upright and can never be inverted. **Reason (R):** When energy flows from a particular trophic level to the next, some energy is always lost as heat at each step. Select the correct answer using the codes given below:

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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