Which of the Following Distinguish the Field of Microbiology from Other

Multiple Choice

Which of the following distinguish the field of microbiology from other fields of biology?

A) The size of the organism studied.
B) The techniques used to study organisms regardless of their size.
C) Both the size of the organism studied and the techniques employed in the study of organisms.
D) Neither the size of the organism studied nor the techniques employed in the study of organisms regardless of their size.