The correct answer to this is Steroid, this other guy just googled it and he didn't pay attention. The one he looked at was talking about two different things being in the same group NOT the same thing. Hope you didn't put his answer because that answer would be wrong. If you want to proof check my answer go ahead.
Explanation: Cholesterol is steroid because sterols have similar chemical structures, consisting of multiple rings and a side chain, and their functions involve sending chemical messages in the body. Cholesterol does this same thing, and sterols have a more common name which is called steroid.
Hope this helps!
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