Answer:
because they are divided in half one for the first answer and half for the other
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Answer: Sue and Bob decided to separate their vegetable and flower gardens
There are two different seperates here. One is an adjective, the other is a verb.
In the answer above, separate is a verb. It is an action. Sue and Bob are separating their gardens. A synonym for this separate is “to split up”.
In the other, incorrect answers, separate is used as an adjective. It is describing. A synonym for this separate is “apart.”