Final answer:
The slopes of line segments AB and CD are negative reciprocals of each other, indicating that the lines are perpendicular. Hence, the answer is B) Perpendicular.
Step-by-step explanation:
To determine if line segments AB and CD are parallel, perpendicular, or neither, we need to compare their slopes. The slope of a line segment is the rate at which the 'y' value changes with respect to the 'x' value.
For line segment AB, the slope is (f - 0) / (e - 0), which simplifies to f/e. For line segment CD, the slope is (0 - e) / (f - 0), which simplifies to -e/f.
Since the slopes of AB and CD are negative reciprocals of each other (f/e and -e/f), the line segments are perpendicular.
Therefore, the correct answer is: B) Perpendicular.