The central idea would be that even though Edison made lots of horrible inventions and mistakes, without him not giving up and continuing we wouldn’t have things we use everyday. So basically keep going and don’t give up.
The correct answer is b. as long as
This builds a sentence whose realization depends on a fulfilled condition. Other options would create ungrammatical or nonsensical sentences.
Personal opinion or experience that gets in the way of being able to report a story in a fair or objective way hope that help
A subject because it complete it
