Answer:
Hard Surfaces
Explanation:
Soft surfaces will absorb sound while hard surfaces will reflect it.
The opportunity cost which we can deduce from the given question is:
<h3>What is Opportunity Cost?</h3>
This is an economic principle which simply means the foregone alternatives when a person is making a choice based on the scale of preference.
With this in mind, we can see that Ben has to make a choice about going to the movies or the arcade and he decided to go to the arcade which makes going to the movies the opportunity cost.
Read more about opportunity cost here:
brainly.com/question/8846809
<span>◦MLA citations, in MLA Format, for your sources of information </span>
A bureaucracy is a system of organization based on the principles of hierarchical authority, formalized rules and B) job specialization.