In a class comprising students from different ethnic groups, it is important to

Correct option is B

In a culturally diverse class, it's important to facilitate discussions that foster acceptance and respect for diversity. This approach helps students understand and appreciate different cultural perspectives, promoting an inclusive environment. Dividing students by ethnic groups or focusing solely on the dominant culture can reinforce divisions and biases. Teaching should be inclusive and recognize individual differences, rather than ignoring them. Therefore, the best approach is to encourage discussions that celebrate diversity and teach students the value of respecting different cultural backgrounds.