Which of the following is correct?

A This car is more expensive than any car in this showroom.

B This car is more expensive than any other car in this showroom.

C This car is most expensive in this showroom.

D This car is more expensive in this showroom.

B is correct because A does not flow well and is unspecific, C is missing the word "the" and D the word "in" should be replaced with than. As a result, B is the only answer left and the word other in the sentence makes it specific and detailed, unlike option A.

It's either A or B because the others don't make sense. I'm pretty sure it's B.