<p>Mr. Lee was given a <strong>partial</strong> refund for his purchases as the item he returned has already been used.</p>
<p>The correct answer is <strong>(C) partial</strong>.</p>
<p>In this sentence, we are describing the refund that Mr. Lee received. We need to use an adjective to modify the noun "refund." The adjective form of "part" is "partial." The word "partial" means incomplete or not whole. It is used to describe something that is a portion or a fraction of the whole. In this context, Mr. Lee received a refund that was not the full amount because the item he returned had already been used.</p>
<p>The other options are not correct:</p>
<p>(A) "Partially" is an adverb, not an adjective. It is used to modify verbs, not nouns. For example, "He partially completed the task." In this sentence, "partially" describes how the task was completed.</p>
<p>(B) "Part" is a noun, not an adjective. It refers to a piece or a portion of something. For example, "He took apart the machine." In this sentence, "part" is used as a noun to describe a piece of the machine.</p>
<p>(D) "Partiality" is a noun, not an adjective. It refers to a biased or unfair preference for one thing over another. For example, "The judge showed partiality towards the defendant." In this sentence, "partiality" describes the judge's biased behavior.</p>