Sentence that may or may not need correction:
Referred to by some as the "fifth Beatle,"
Iain Softley wrote and directed a movie about Stuart Sutcliffe-the original bassist of the group-Backbeat in 1994.
I'm not sure for this question. Can I please get an explanation for why every choice but the correct one is wrong? Can I have an explanation for the "dash" usage also?
A. Iain Softley wrote and directed a movie about Stuart Sutcliffe-the original bassist of the group-Backbeat in 1994
B. in 1994 Iain Softley wrote and directed the movie Backbeat about Stuart Sutcliffe-the original bassist of the group
C. Stuart Sutcliffe-the original bassist of the group-was the subject of the 1994 movie, Backbeat written and directed by Iain Softley
D. Iain softley, who wrote and directed the movie Backbeat about Stuart Sutcliffe the original bassist of the group in 1994
I chose A but the correct answer is C.