Step 1: Understanding the Mineral Properties.
- Labradorite is known for its play of colors (P-2).
- Actinolite typically has an acicular habit (Q-3).
- Fluorite is characterized by four sets of cleavage (R-4).
- Barite has a high specific gravity (S-1).
Step 2: Analyzing the options.
(A) P-2, Q-3, R-4, S-1: Correct — This matches each mineral with its characteristic property.
(B) P-3, Q-4, R-1, S-2: Incorrect — The properties are mismatched for the minerals.
(C) P-1, Q-2, R-4, S-3: Incorrect — The properties for the minerals are mismatched.
(D) P-4, Q-3, R-1, S-2: Incorrect — The properties for the minerals are mismatched.
Step 3: Conclusion.
The correct answer is (A) P-2, Q-3, R-4, S-1, as it correctly matches the minerals with their properties.