i think you mean antibiotic ... but Alexander Fleming was the one who advanced the antibiotic (world) and was responsible for creating these categories of medicine... this affected the 20th century because millions of people use antibiotics everyday and without them... many diseases would still affect people without a cure
English please not everyone can understand?!
D) Lord cornwallis to george washington succesfull seige in yorktown
It has to do with misinfortmation
Answer:
B. It was a victory for the Mexican Army
Explanation: