The protagonist of Things Fall Apart<span>, Okonkwo is also considered a tragic hero.
A tragic hero holds a position of power and prestige, chooses his course of action, possesses a tragic flaw, and gains awareness of circumstances that lead to his fall.
Okonkwo's tragic flaw is his fear of weakness and failure.</span>
The sentence that is correctly construed with an independent clause and a dependent clause is A) As they examined the evidence afresh, they thought of a completely different explanation.
The other sentences don't have dependent clauses, only phrases.
I would say A because sometimes you need to cite different sources
