Hi lovely,
The answer you're looking for would be B.
The rest of the answers have words that are unnecessary which would be wordiness.
yeah so what do you do just make a story how long does it need to be?
Answer:
I think it is Sal. You are welcome
The simple subject in the sentence is studied
In Ancient times, sickness was thought to be caused by an excess of blood. Therefore, doctors would cut into their patients and let some of the blood out to help cure them. This theory advanced into thinking that the human body needed all of its "humors" to be balanced: blood was one of the humors so if the doctor thought you had an imbalance, they would 'let' some of the blood out.
