Answer:
B). Arrest Antigone and sentence her to death.
Step-by-step explanation:
A tragic flaw is exemplified as the error or flaw in a character's attribute that drives him/her towards destruction. These attributes may include lack of knowledge, pride, etc. which brings a transition in these characters that helps them to evolve as a better person and encourage the audience for such evolution in their character traits.
As per the question, Creon's tragic flaw is his pride(hubris) due to which he fails to recognize or acknowledge his faults. His flaw(persistance and pride) leads him to arrest Antigone and sentence her to death. Thus, option B is the correct answer.