Which of the following options indicates the size of PPLO (Pleuro Pneumonia Like Organisms)?

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Accepted Answer

Step-by-step explanation:

- PPLO (Pleuro Pneumonia Like Organisms) are mycoplasmas, the smallest free-living bacteria.
- Typical size of mycoplasmas is about $0.1$–$0.3\ \mu	ext{m}$ (often cited around $0.1\ \mu	ext{m}$ to $0.2\ \mu	ext{m}$).
- Compare with the options: $30\ \mu	ext{m}$, $20\ \mu	ext{m}$ and $10\ \mu	ext{m}$ are sizes of eukaryotic cells (much larger). The only option matching mycoplasma size is $0.1\ \mu	ext{m}$.

Therefore the correct choice is option (3), i.e., c.

FINAL_ANSWER: c

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Answer

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