13. Letter "e "and other specimens appear inverted
when viewed under the
microscope. How would you justify such observation?
I. A microscope uses two sets of lenses to magnify an image.
II.
The preparation of the specimen was a failure.
III.
A light source shines up to make the specimen visible and then
the light is bent.
A. I only
B. I and III but not II
C. I and II but not III
D. III only