A(n)
makes clauses dependent.
adjective
adverb
coordinating conjunction
subordinating conjunction

A Subordinating conjunction (Option D) makes a clause dependent.

Explanation:

A sentence can have two clauses: Independent or the main clause and the dependent clause.

The Independent clause is a complete thought in itself. It has a subject and a predicate (with verb). But a dependent clause is dependent on the main clause to complete its meaning.  These two clauses are joined using subordinating conjunction. Example of subordinating conjunctions are although, because, whenever, before,while, when. Use of these words make the clause dependent on the main clause.

A coordinating conjunction might join two independent clauses also, so the correct answer Option D.

cassius, casca, and their allies plant false documents to manipulate brutus to join their cause to remove caesar. after doing so, they visit brutus at night in his home to persuade him of their views. there they plan caesar's death. brutus is troubled but refuses to confide in his devoted wife, portia. on 15 march, caesar's wife, calpurnia, urges him not to go to the senate. she has had visionary dreams and fears the portents of the overnight storms.

answer: buck is a dog living a charmed life on the estate of judge miller, during the time of the klondike gold rush in 1897. he is the king of all the animals on the estate and as such enjoys special privileges, such as the run of the estate and the admirable position of being the judge's favorite dog.

this all ends the day he accompanies manuel on a walk through the orchard to a flag station, where manuel sells him to a stranger. manuel sells buck, because he has gambling debts he needs to pay and a family to support.

this one act changes buck's life irrevocably. it is the catalyst for the rest of the story about buck and his transformation from domestic pet to wild animal.

explanation: read thoughroly ! and u will find your answer and the mean time i will be keeping my eye on you !