Question

question 19
the ______ of the microscope carries three or four objective lenses.
a base
b arm
c nosepiece
d ocular

Explanation:

In a microscope, the nosepiece is the part that holds and allows rotation between three or four objective lenses. The base provides support, the arm is for carrying and connecting parts, and the ocular is the eyepiece.

Answer:

C. nosepiece