Which of the following cells are critical components of the central nervous system?
A. Neurons
B. Astrocytes
C. Oligodendrocytes
D. Schwann Cells
E. Microglia
Choose the correct answer from the options given below:
1
A, B, and D Only
2
A, B, C, and E Only
3
A, C, and D Only
4
All of the above