题目内容
（请给出正确答案）
[主观题]
What could scientists do if Robert's theory proves to be true？[A] They could drive the ins
What could scientists do if Robert's theory proves to be true？
[A] They could drive the insects away.
[B] They could keep the plants well-watered.
[C] They could make the plants grow faster.
[D] They could build devices to trap insects.
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