Step 1: Understanding the Question:
We judge Assertion (A) about planting deciduous trees on the southern side of a plot in warm and humid zones, and Reason (R) about teak, sisham and sagwan.
Step 2: Detailed Explanation:
• Reason (R) describes teak, sisham and sagwan as deciduous trees; as per the NTA final answer key this is not accepted as correct in this form.
• As per the NTA final answer key, Assertion (A) is accepted as correct while Reason (R) is not correct.
Step 3: Final Answer:
As per the NTA final answer key the correct option is (C) (A) is correct but (R) is not correct.