Disease causing microbes are called
A) bacteria
B) pathogens
C) microorganism
D) none of these

Hint: There are various microorganisms that cause various forms of diseases. But in the following question, the question is demanding for a Peculiar word that covers all those forms of microorganisms that cause diseases.

Complete Answer:
We know that for most of the diseases microorganisms are responsible. There are various types of microorganisms like bacteria, virus, fungi and many others.

Let us find the answer by evaluating the options:
1) Option A is bacteria. Bacteria are just part of microorganisms (microorganism is a broader term instead). Bacteria causes a variety of bacterial diseases and this is generally treated using antibiotics. So, this is definitely not the term we are looking for.
2) Let's go to option B that is pathogens. The definition of pathogens goes like " disease causing microbes are called pathogens". Pathogen is a broad term used for all those microorganisms which in a way or other cause disease.

So, option B is the correct answer.

3) Let Us see option C which is microorganism. Microorganism and microbes are related terms. Both the words mean one and the same thing. So, this also cannot be our answer.
4) The last option, option D is none of these. This also cannot be our answer as we have already got our correct answer which is option B that is pathogens.

Note: All the disease causing microorganisms (these are tiny organisms which are not visible by our naked eyes) comes under a broader term pathogen. All the bacteria, virus, fungi and all other microorganisms get compiled up in this term in a broader sense.