Answer:
avoid contact with the outgroup
Explanation:
Some experts have suggested that different types of prejudice may arise because of different emotional responses to the target group. From this perspective, prejudice arising from guilt may result in behaviors that try to avoid contact with the outgroup.
When an individual have a sense of guilt towards a group he is not a part of, he tends to isolate himself from such group. This behavior is not out of hate as may be interpreted by others but out of guilt. For example, after the abolition of slavery, some Europeans found it hard to associate with the free blacks, this type of prejudice is most likely linked to a feeling of guilt.
Professor plum is showing the detached style of listening. This type of listener are intellectually not present in a conversation although they are present physically. In the situation described clearly the professor was not listening to what Roberto was saying.
The answer is Thomas Jefferson
Explanation: