Because fruits are sweet, unique, healthy and important, and the reflection of yourself on a fruit can reflect your tastes, your perception of self, and how you feel you relate to the world. It's the reason why you chose whatever fruit you did than the fruit itself
It says that either you don't know enough about the different types and qualities of fruits, or you're not very good at creating symbolic representations of yourself in fruit form.
I'd be a strawberry or those cherries with the pits in them. I think they're called bing cherries. No wait, pineapple! There are too many good fruits to choose from. D: