<p>Last month, several employees of Soylent Corp were surprised that they received an <strong>unexpected</strong> bonus as a reward for their dedication to the company.</p>
<p>The correct answer is (D) <strong>unexpected</strong>.</p>
<p>The word "unexpected" means not expected or anticipated. In the context of the sentence, the employees were surprised because they did not expect to receive a bonus. The adjective "unexpected" accurately describes the type of bonus they received.</p>
<p>The other options do not fit the context of the sentence:</p>
<p>(A) <strong>experienced</strong> does not make sense in this context. It is an adjective that describes someone who has a lot of knowledge or skill in a particular area. However, it does not describe the type of bonus the employees received.</p>
<p>(B) <strong>necessary</strong> does not fit the context either. It means something that is required or essential. It does not describe the bonus the employees received.</p>
<p>(C) <strong>indefinite</strong> means something that is not clearly defined or determined. It does not accurately describe the bonus the employees received.</p>