Underlying attitudes, values, and opinions are the factors that are corresponds to deep-level diversity in groups.
Answer: Option C
Explanation:
In any group, deep-level diversity can be identified by the values and beliefs of people of the group. This is because the attitudes, values and opinions of every person in a group are different from every other person; in other words no two people have the same opinion about a specific object.
These factors are deep-rooted and are adopted by people as they grow. Values, attitudes and opinions also do not remain the same as they keep changing as people interact with others and move around in the society.