Where can she find the other printer? Which line chart is correct?

F：Excuse me? I can’t get my printer to work．Is there another printer I can use around here?
M：Yeah．There’s one in the supply room，which is between the admin’s office and the meeting room．
F：Thanks．Is the room number 2087?
M：No，it’s 2088，2087 is the admin’s office，and 2089 is the meeting room．

M：If you have a look at this line chart，you can see that our sales topped 50 million in January. Then in February，it dropped to 30 million，and remained constant until the end of March．