Answer:
B. Decreasing; The slope of the line between points D and E is negative
Step-by-step explanation:
The graph clearly shows that the speed is decreasing between these points. This narrows down your options to either Option B or Option D. A completely vertical line has a slope of undefined. The line is not completely vertical and undefined, so Option D is incorrect. This leaves B as correct. A negative slope is a line rising right to left.
Hope it helps!
