The subject tells whom or what the sentence is about, and the predicate tells what the subject is or does.
Example: The dog ran.
Explanation: The dog is the subject of the sentence, because the sentence is telling something about that dog.
In medias res
It literally translates into "In the middle of things"
C: explanation, if you made note cards you wouldn’t have to rehearse them all you would have to do is read them
Answer:
B. harmed more patients with infections than they helped with surgery.
Explanation:
Before Joseph Lister was inspired by Pasteur's germ theory to perform sterile operations, doctors harmed more patients with infections than they helped with surgery.
This was because doctors didn't do enough to prevent the spread of bacteria through surgical equipment and in the end they ended up causing more problems for their patients than the help they gave.
Prior to Joseph Lister's sterilisation which was influenced by Pasteur's germ theory, surgeons were unhygienic and didn't wash their hands or change their clothing before surgery which made infections after surgery widespread.