Sentence Correction (SC) | Re: Before Thomas Edison became the popular and respected inventor known a

Before Thomas Edison became the popular and respected inventor known as Thomas Edison, he was an anonymous student and scientist.

A.Before Thomas Alva Edison became the popular and respected inventor known as Thomas Edison, he was
B.Before he had been the popular and respected inventor, Thomas Edison he was
C.Thomas Alva Edison has been popular and respected inventor, Thomas Edison, after such time as he was
D.Before he became the popular and respected inventor, Thomas Edison had once been
E.Thomas