To answer your question accurately, I would need to see the graph depicting the motion of the cyclist. However, since I don't have the visual, I can provide you with some guidance on how to analyze the graph to determine the cyclist's acceleration.
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Constant Speed: If the cyclist moves at a constant speed in a straight line, the acceleration is zero and constant (Option B).
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Speeding Up: If the cyclist's speed is increasing over time, the acceleration is positive and constant (Option C) if the slope of the velocity vs. time graph is a straight line.
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Slowing Down: If the cyclist's speed is decreasing over time, the acceleration is negative and constant (Option A).
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Changing Speed: If the graph has changing slopes (not linear), the acceleration is increasing (Option D) if the slope of the velocity vs. time graph is increasing.
After assessing the graph, you can choose the appropriate option. If you can provide a description of the graph or its key features (like a velocity vs. time graph line), I can help you determine the correct answer.