One t-shirt is sold for every 5 people who attend a concert. what is one way to write the unit rate in words?

1 T-Shirt for every 5 people

First of all, B & C are wrong, because they say 5 T-shirts for one person.

Next, we will look at A & D. A is more grammatically correct, and so you should use A.

OR

Answer:

The last one