Fluorescent in Situ Hybridization (FISH) Has Become a Valuable Tool

Fluorescent in situ hybridization (FISH) has become a valuable tool for environmental microbiologists for all of the following reasons except

A) To demonstrate the diversity of microbes in an environment.
B) To observe microbes in their natural environment in association with other microbes.
C) To detect uncultured microbes.
D) To obtain pure cultures of microbes.
E) All of the above.