Who invented penicillin?

Alexander Fleming

The correct answer is Option (2)- Alexander Fleming

Alexander Fleming is credited with the discovery of penicillin.

Explanation:

• In 1928, Alexander Fleming, a Scottish bacteriologist, made the accidental discovery of penicillin at St. Mary's Hospital in London.
• He observed that a mold of the genus Penicillium produced a substance that killed a wide variety of bacteria.
• This discovery marked the beginning of the era of antibiotics, revolutionizing medicine by providing an effective treatment for bacterial infections.

Therefore, the correct answer is Alexander Fleming.