Correct option is A
The correct answer is (a) Antoni van Leeuwenhoek
Antoni van Leeuwenhoek, a Dutch scientist of the 17th century, is widely regarded as the "Father of Microbiology".
He was the first person to observe and describe single-celled organisms, which he called "animalcules", using microscopes he built himself.
His microscopes, though simple, had magnifying power up to 270x, which allowed him to observe bacteria, protozoa, sperm cells, blood cells, and more.
His discoveries laid the foundation for the field of microbiology, even before the development of cell theory.
Information Booster:
• Leeuwenhoek made over 500 handcrafted microscopes during his lifetime.
• He reported his findings to the Royal Society of London.
• Observed bacteria from teeth scrapings and rainwater.
• His work was entirely self-taught and independent of academic institutions.
• First human to see and document living cells (microbes).
• His discoveries date back to the 1670s–1720s.
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