Question 1 - Reading and Writing Practice Test for the SAT Exam

During the late 19th century, the discovery of antibiotics transformed medical treatment, marking a significant milestone in healthcare. Before this discovery, infections that are now considered easily treatable were often fatal. The introduction of antibiotics ____ the way diseases were understood and managed, leading to a dramatic decrease in mortality rates from bacterial infections.

Which selection fills in the blank with the word or phrase that fits most logically and accurately?