Apple flowers produce seeds inside ovaries, which mature into fruits. Apple trees belong to which of the following?

a. Gymnosperms

b. Angiosperms

c. Bryophytes

The answer is b. Angiosperms. Bryophytes are seedless plants. Gymnosperms and Angiosperms have seeds. The difference between these two groups is in the seed position. If seeds are inside ovaries, a plant belongs to Angiosperms. If seeds are outside ovaries, on the scales for example, a plant belongs to Gymnosperms. Since apple flowers produce seeds inside ovaries, it belongs to Angiosperms.