help me pls
matino po sagot

Answer:
a, c, and d should be in motion
b and e in reference point
Explanation:
hope it helps. make this the brainliest (≧▽≦)
⌦ANSWER
MOTION
REFERENCE POINT
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A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point.