The wonder drug, penicillin is extracted from
Penicillin sometimes abbreviated PCN or pen is a group of antibiotics derived from Penicillium fungi. Penicillin antibiotics were among the first drugs to be effective against many previously serious diseases, such as bacterial infections caused by Staphylococci and Streptococci.
Penicillins are still widely used today, though misuse has now made many types of bacteria resistant. It is extracted from Penicillium notatum. Thus, the correct answer is option A.