<p>Workshops with topics associated with the job market and job search skills are offered <strong>throughout</strong> the year.</p>
<div>(A) through - Incorrect. "Through" means to go in one side and out of the other, or to move from one side to the other side of something. It does not convey the meaning of "all year".</div>
<div>(B) thorough - Incorrect. "Thorough" is an adjective that means complete or done with great care and attention to detail. It does not fit in the context of the sentence.</div>
<div>(C) through - Incorrect. Same as option (A), "through" does not convey the meaning of "all year".</div>
<div>(D) throughout - Correct. "Throughout" means during the whole of a particular period of time. In this context, it means that the workshops are offered for the entire year.</div>