Step 1: Understanding the Question:
This question tests knowledge of agroforestry system classification.
Step 2: Detailed Explanation:
Protective agroforestry aims at ameliorating climate, wind and water erosion, and improving soil fertility.
It focuses on environmental protection.
Productive agroforestry (B): Aims at producing goods.
Multipurpose agroforestry (C): Combines production and protection.
Home gardens (D): A type of agroforestry.
Thus, the correct answer is protective agroforestry.
Step 3: Final Answer:
Thus, protective agroforestry aims at ameliorating climate and erosion, which corresponds to option (A).
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