Consider the paragraph and image. When I turned fifteen, my uncle bought me a model rocket. I was skeptical at first, thinking i
t was a toy for a kid. But my uncle explained that it contained everything needed for a real launch, from an engine to a parachute. How does the image enhance the paragraph? a) by crediting the inventor of the rocket
b) by identifying the parts of the rocket (THIS IS THE ANSWER)
This would be the only likely choice based on the paragraph. The paragraph is all about convincing the speaker that the model rocket is not a toy for a kid. The uncle does this by showing that the kit "contained everything needed for a real launch." The image should further the development of this idea by showing the contents of the kit which is all the parts of the model rocket. Option A is not directly related to the content of the paragraph. Option C would not be helpful as the images of a toy and rocket alone would not show its complexity. Option D is also not a good choice because the paragraph does not talk about how to launch the rocket.
So based on your question that states a few trees in garden and one of them is a pear tree, there are pears. But a strong wind blew, there were neither pears on the tree nor on the ground. I think the best explaination to this statement is that some one might pick up the pear tree or it can be that its the wrong tree that is blown.