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Biology, 15.01.2020 02:31 cece4649

Brian's aunt has cats. when brian recently visited her, he started sneezing badly and believes that it was because he is
allergic to cats.
what would be the next step for brian to form a hypothesis?
a by avoiding going to his aunt's house
b by wearing a nose mask near cats
c by visiting other households with cats
by visiting his aunt's house again with the cats outside

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