Answer:
c) Though he worked hard
Explanation:
A dependent clause is the part of a sentence that cannot make sense on its own, that is, if that part is separated from the sentence, it will not be able to have a definite meaning. This type of phrase is dependent on a complement, which can add coherence and convey a complete and meaningful message. This complement is an independent clause.
An example of a dependent clause is "Though he worked hard." When reading this clause we are unable to understand its meaning, as it is dependent on a complement to promote meaning.
