This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
To see the bacteria, methods used are - 
Select and explain. 
A. Microscopy, B. Stained preparations, C. Both, D. None
C: Both
Answer: C: Both 
Explanation: Individual bacterial cells hard to see because


They are too small to be seen by naked eye.
They are almost transparent


So, to be seen they require-


Magnification under microscope
Staining techniques to produce contrast