The answer is a fad during the 1960s was someone wearing bell-bottom pants and a tie-dyed shirt. It's an error in logic because they are saying everyone who wears that is a fad when it is not true.
Option C contains a logical error by implying that a single person wearing specific clothing is synonymous with a fad. A fad refers to trends adopted collectively rather than individual instances. Thus, C inaccurately describes the nature of a fad compared to the other options.
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