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When two plants, A and B, were planted together in a field outdoors, plant A produced vegetables, and plant B produced flowers which attracted pollinators. It was noted that when they were grown apart from each other, plant A did not produce vegetables, but plant B still produced flowers. Which of the following is the most likely reason plant A did not produce vegetables when planted away from plant B?

A The insects that pollinated plant B also pollinated plant A

This question gives limited information as to the growing conditions. We know that when the two plants are planted together, plant A produces vegetables. We are also given the information that plant B attracts pollinators. In order for plants to produce vegetables and fruits, they must be pollinated. When plants A and B are separated, the pollinators likely did not approach plant A. While the other options may be possible, we were not given any information related to them.