<span> I </span>will<span> only focus merely on changes of the characters' minds and behaviour which </span>can<span> be noticed while</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.
The project will be quite delayed because things have gone so wrong.<span> I believe it is bc </span><span>The project has gotten so far behind it will not be complete on time </span>indicates it will never get done, and I don't think the other ones are correct bc they make no since.