Question

Which is the best correction of the sentence fragment?

Was certain that the door was left open.









A.
My mom was certain. That the door was left open.







B.
That the door was left open; my mom was certain.







C.
My mom was certain that the door was left open.







D.
Since my mom was certain that the door was left open.

Answer 1

I think its C, it sounds the best

Answer 2

C.

Answer 3

They are right