Step 1: Understanding the Concept:
We need to match meteorological parameters with their units.
Different weather parameters are measured in different units.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the standard units for weather measurements.
Step 3: Detailed Explanation:
Relative humidity is measured in percentage (A-IV).
Temperature is measured in degree centigrade (B-I).
Wind speed is measured in km per hour (C-II).
Cloud cover is measured in octa (D-III).
Thus, A-IV, B-I, C-II, D-III is the correct matching.
Step 4: Final Answer:
The correct matching is A-IV, B-I, C-II, D-III.
Hence, the correct option is (C).