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?

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.