Question

Can someone please help me, will medal & fan?
Which of these sentences is correctly written?
A. An important element of tragedy is the origin of the sorrowful outcome that according to the classical prescription, which must be mistaken by the protagonist.
B. An important element of tragedy is the origin of the sorrowful outcome, according to the classical prescription, must be a mistake by the protagonist.
C. An important element of tragedy is the origin of the sorrowful outcome, which, according to the classical prescription, must be a mistake by the protagonist.

Answer 1

c?

Answer 2

Thank you @Bloomlocke367