The maximum magnification of many light microscopes is × 400. What does this mean?
A.
Two objects can be distinguished as separate if they are 400 nm apart.
B.
The smallest object that can be seen has a diameter of 400 nm.
C.
Specimens can only be seen if they are made 400 times larger.
D.
The image produced by the microscope is up to 400 times larger than the specimen.