. The math department chairwoman has to select one math teacher to accompany her to a math conference in Las Vegas, which she's very excited about. Which of the following is a fair method for selecting the teacher to go with her on the trip?

A. Select the teacher who grew up near Las Vegas.
B. Ask the math department teachers to vote on who gets to go.
C. Select the teacher who has been in the department the most number of years.
D. Assign a number to each teacher who would like to go and draw a number from a bag.