The correct answer is A. Only an apple tree
Step-by-step explanation:
In biology, a seed is a simple and usually small structure that is produced by an adult plant and contains a plant embryo that leads to a new adult plant of the same kind after germination. Additionally, seeds are the result of reproduction and fertilization in most plants including angiosperms and gymnosperms. The previous ideas imply that an apple seed can only become an apple tree as the seed contains an embryo with the genetical material of the male and female gametes involved in the reproduction and therefore the seed is of the same species than the "parent" plants.