Since the cells do not contain chloroplasts, Natalie concludes that they must have come from a part of a plant that does not perform photosynthesis, such as a mature fruit.

What is a logical alternate explanation for her observations?

A.
The cells came from a nonliving object.
B.
The cells can use sunlight to make food.
C.
The cells came from the leaves of a flowering plant.
D.
The cells came from an animal.