Match the sets in Column I with their correct descriptions in Column II:

Show answer & explanation
Correct answer: A
Explanation
A. Rational numbers (Q) → 2. All terminating and repeating decimals
When rational numbers are written in decimal form, they are either terminating or repeating.
B. Whole numbers (W) → 3. Include zero and natural numbers
Whole numbers = {0, 1, 2, 3, ...}
C. Prime numbers (P) → 1. Closed under multiplication but not under subtraction
D. Irrational numbers (R) → 4. Non-repeating, non-terminating decimals
Correct match = A-2, B-3, C-1, D-4