Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen ?

Options

A. Bacillus
B. Pseudomonas
C. Mycoplasma
D. Nostoc

Explanation

To solve the question, we need to identify the smallest living cells that meet the following criteria:

1. They are the smallest living cells.
2. They do not have a definite cell wall.
3. They are pathogenic to both plants and animals.
4. They can survive without oxygen.

Let's break down the solution step by step:
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