Can Not understand why answer is A

Hey guys, For this question I plugged x=0.1 And x=2 and the two values, when plugged in, indicated that the solution was less than one (x=0.1) and one was greater than one (x=2). Because one solution indicated that Quantity A was bigger and the other indicated that quantity B was bigger, I chose D. Why is D not the correct answer? I do not understand how Greg explained it in the video. Any help is appreciated.

Try again.