Question

Which of the follwing is a set?

• A. The collection of all strong boys in a class
• B. The collection of all short people in a colony
• C. The collection of letters of the word 'CORONA'
• D. The collection of difficult topics in Maths

Answer 1

The correct option is C The collection of letters of the word 'CORONA'

A set is a well-defined collection of distinct objects.
Clearly, option $\left(c\right)$ is correct