Answer: 16.
- A 8
- B 12
- C 16
- D 24
Correct answer: C. 16
Explanation: Number of subsets = 2<sup>n</sup> = 2<sup>4</sup> = 16 (including empty set and the set itself).
Concept context
Ordered pairs, Cartesian products, types of relations and functions, domain and range. Foundation for calculus and Class 12 algebra.