Answer:
The correct answer is option C.
Step-by-step explanation:
Angiosperms are the plants that are also known as the flowering plants. These are the group of the plants that are the only plants have the the seed enclosed in the protective structure called as ovary, which is the female structure.
In gymnosperms plants, they lack the flowering body or fruits on their plant. These plants have seed without any protective structure so it is called as unenclosed or naked seeds.
This difference would be helpful to determine if the plant is gymnosperm or angiosperm.
Thus, the correct answer is option C.