rsarashi wrote:While Noble Sissle may be best known for his collaboration with Eubie Blake, as both a vaudeville performer and as a lyricist for songs and Broadway musicals, also enjoying an independent career as a singer with such groups as Hahn's Jubilee Singers.

(A) and as a lyricist for songs and Broadway musicals, also enjoying
(B) and writing lyrics for songs and Broadway musicals, also enjoying
(C) and a lyricist for songs and Broadway musicals, he also enjoyed
(D) as well as writing lyrics for songs and Broadway musicals, he also enjoyed
(E) as well as a lyricist for songs and Broadway musicals, he had also enjoyed

OAC

My Doubt: In OA how can a only a comma join the independent clause.

Please explain.

Thanks.

The sentence begins with "while," which is a subordinating conjunction.

If I write, Tim is in my class, I have never spoken to him. I have two independent clauses joined by a comma, and thus have a run-on sentence or comma splice. If, however, I start the sentence with a subordinating conjunction, such as "while" or "although" I'd have a valid construction. Although Tim is in my class, I have never spoken to him, is perfectly grammatical. "While" serves the same function in this question.