Which of the following is an example of discrimination not diversity ?

Correct option is B

The answer is (b) In a school some children sit on chair while some others are made to sit on the ground.
This is an example of discrimination because it treats children differently based on their social status or ability to afford a chair. This can lead to feelings of inferiority and exclusion among the children who are made to sit on the ground.
The other options are examples of diversity. In option (a), the fact that some families celebrate Holi while others celebrate Christmas is an example of cultural diversity. In option (c), the fact that some vendors sell fish while others sell fruits is an example of economic diversity. In option (d), the fact that some houses are painted white while others are painted yellow is an example of aesthetic diversity.