If the student then examines some of the cells of the limp celery under the microscope, they would see that the cell contents
are unchanged
are slightly shriveled
fill the celery cavity
look larger than expected

Option D, Look larger than expected

Explanation:

The image produced by the microscope’s eyepiece lens is virtual and magnified.  

Being virtual means the image formed is exactly the opposite of the object placed at the objective lens. Since the image is magnified, it appears larger than the actual size of the object. This happens because the lens bends the light toward the eye.  The higher is the power of the lens, the higher is its magnification power.  

Hence, when the student would see larger cell contents

Hence, option D is correct

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

a. by using fur or clothes to trap heat energy near the body