Which sentence choice below does NOT use the semicolon
correctly?
A. Evan studies very hard; his grades are very
high.
B. Evan's grades are high because he takes the
time to study; he studies everyday!
C. Evan also gets good grades on his tests
because he takes; good notes.​

Choice C does not use the semicolon correctly.

A semicolon does not make sense between “takes” and “good notes”. Semicolons connect two independent clauses that can stand on their own. “Evan also gets food grades on his tests because he takes” is not a complete, independent clause and “good notes” is also not an independent clause.

The correct way to rewrite sentence c is “Evan also gets good grades on his tests because he takes good notes”.