You completed a laboratory activity where you viewed an unstained microscopic image of brain tissue. You observed some lighter, white areas as well as some dull, gray areas. Which of the following is true of your observations?
a. The white areas are collections of cell bodies in the brain.
b. The gray areas are collections of axons in the brain.
c. The white areas are collections of axons in the brain.
d. The gray areas are regions with myelinated axons in the brain.