D because you test it before selling something. I hope is correct :D
-Now I try on this black skirt. How about? Do I look good?
-I prefer the plain colors. Do not you like that red skirt?
-Well, I'm going to try both of them. The brands are good.
- And you know there's a 25 percent discount?
-With these low prices, I can buy blouses and jeans too.
-In agreement. They are not as exaggerated as in other stores.
-And I'm going to find a coat. I love the dark of that gray coat.
-Yeah, it's very silk. Let's see if they have medium size.
The sign announces a 50 percent discount. !What a deal!
C cause it’s basically saying “I know them”