Task: Question Answering
Input (English): Question: Line m lies in the xy-plane. The y-intercept of line m is -2, and line m passes through the midpoint of the line segment whose endpoints are (2, 4) and (6, -6). What is the slope of line m ?

 Option A: -3

 Option B: -1

 Option C: -1/3

 Option D: 0

 Option E: Undefined
Output (English): Option B