Mary grows hundreds of fruit trees in her orchard. The trees range in age, size, and type. Mary's neighbor states, "Now that Mary has listened to my advice, 93% of her trees are bearing fruit." What makes this conclusion difficult to evaluate

There is missing background information.

Explanation:

From the three available sentences in the questions, there is very little connections between them, they are all disjointed, with no actual story to link them together. The sentences are just fragments. Hence, there is no BACKGROUND INFORMATION that describes or explains the three sentences.

Therefore, the right answer is, There is missing BACKGROUND INFORMATION.

dude you should crop your image so only the question shows. but   can you explain it better

what is the answer