Answer: The word because is a linking word and the semicolon isn't appropriate where there is a link So no the semicolon won't work :)
Explanation:
I believe the answer is C.) When the teacher attempted to discipline him, he was obstinate.
Obstinate means; “Stubbornly refusing to change ones opinions or chosen course of action, despite attempts to persuade one to do so.” The sentence states that the teacher is trying to discipline the boy, but he refuses to.
I hope this helps :))
Cells yes. for the most part molecules = no and atoms, definately not.
