The correct option is D Ernest Chain, Howard Florey, Alexander Fleming
The three scientists who were awarded the Nobel prize in 1945 for the discovery of penicillin and establishing its full potential as an effective antibiotic were Howard Florey, Alexander Fleming and Ernest Chain.
Penicillin was nicknamed the “wonder drug” as it helped save many lives affected and injured during the World War II.
Penicillin is the first antibiotic discovered by Alexander Fleming. It was a chance discovery. While working with Staphylococci bacteria, he noticed that the bacteria could not grow in the presence of some chemical produced by the mould Penicillium notatum. Hence, he named it penicillin after the mould Penicillium notatum. Though Penicillin was discovered by Fleming, its full potential as an effective antibiotic was established by Ernest Chain and Howard Florey.
This antibiotic was used extensively to treat the soldiers in World War II. For this significant discovery, Fleming, Chain and Florey were awarded the Nobel Prize in 1945.
German bacteriologist Paul Ehrlich was awarded the Nobel prize in 1908 for his ground breaking research on the body's immune response and introducing the concept of a “magic bullet” called Salvarsan. It was used to cure syphilis prior to the discovery of other antibiotics.
Selman Waksman was involved in the discovery of antibiotic streptomycin along with other scientists. For this significant discovery, he was awarded the Nobel Prize in 1952.