Question ID:PT5 S2 Q9 Passage:A store sells shirts only in small, medium, and large sizes, and only in red, yellow, and blue colors. Casey buys exactly three shirts from the store. A shirt type consists of both a size and a color. Casey does not buy two shirts of the same type.Casey does not buy both a small shirt and a large shirt. No small red shirts are available. No large blue shirts are available. Stem:If Casey does not buy a medium yellow shirt, which one of the following must be true? Correct Answer Choice:BChoice A:Casey buys either a medium red shirt or a small blue shirt. Choice B:Casey buys either a medium red shirt or a medium blue shirt. Choice C:Casey buys either a large red shirt or a small blue shirt. Choice D:Casey buys either a large red shirt or a medium red shirt. Choice E:Casey buys either a large yellow shirt or a small yellow shirt.