Answer:
comfortable surroundings can have many values first of all you can focus better, you can be more productive, and you can be in a peaceful mood.
Answer: 3 asking for clarification
Explanation:
The functions of the mentioned expressions is asking for clarification. When someone asks for clarification, it simply means that they are being asked to say something so as to get more information regarding a particular thing and thereby understand better.
Based on the question, the person wants to get clarification regarding number 10 as they've different numbers.