There was a red couch , yellow chair , red table , half yellow and half red carpet . All red and yellow . I then went along and started opening doors . One door led to another red and yellow cozy looking bedroom , another had led to a red / yellow bathroom , but the last room on the first floor ( there were two ) was locked .

Question: What may be a plausible fact about the last room on the first floor ?
Answer: It is a large bathroom .I have already opened the door to it .It contains the colors red and yellow just like the rest of the rooms do .None of the above choices .