Classify the following as bright field, dark field, phase contrast, or differential interference contrast (DIC).
a. Sample must be stained or have its own coloration to be seen:
b. Specimen is illuminated with polarized light:
c. Generates a falsely three-dimensional image:
d. The simplest and most common form of light microscopy:
e. Generates a negative image using a hollow cone of light:
f. Generates a negative image in which light shifts are converted into visible changes in brightness and contrast: