What do fruits typically contain?

Fruits typically contain seeds as a fundamental characteristic, which is crucial for the reproduction of the plant. The seeds are the plant's means of propagation, allowing the next generation to grow. In flowering plants, fruits develop from the ovary after fertilization and serve to protect the seeds while often aiding in their dispersal by attracting animals who eat the fruit and transport the seeds elsewhere.

In terms of the other options, while fruits do contain water and nutrients, it is the presence of seeds that is definitive in classifying what a fruit is. The assertion that fruits contain only sugars is overly simplistic, as fruits are composed of a variety of compounds, including fibers, vitamins, and minerals, in addition to sugars. The reference to leaves and stems does not apply to fruits, which develop from the reproductive parts of the plant rather than from leaves or stems. Thus, the distinguishing feature of fruits is indeed the presence of seeds.