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 awsner is Scholars revived an interest in classical ideas.
Answer:
A. The popes gained greater power throughout all of Europe.
Answer: There are no such thing as “healing” crystals. There are just crystals; beautifully and regularly organized versions of various minerals found on earth. I do not believe they have any properties like magic or invisible energy or anything like that. I do think that they look pretty and feel nice so they may help a person toward a better mood and being in a better mood it might aid in healing them.
Explanation: