<p><span style="font-size: 13.008px;">The correct answer is (C) </span><span class="ans" style="font-size: 13.008px;">us</span><span style="font-size: 13.008px;">.</span></p><div data-answer="c"><span style="font-size: 13.008px;">In this sentence, the pronoun "us" is used as the object of the verb "reach." The verb "reach" requires an object, which in this case is the person or entity being contacted. The pronoun "us" is the objective form of the pronoun "we," and it is used to refer to the speaker(s) or writer(s) as the object of a verb or preposition.</span></div>
<p>Example: <em>Customers may reach <span class="ans">us</span> by sending an e-mail or calling our service representative.</em></p>
<p>The pronoun "we" (option A) is the subjective form of the pronoun, and it is used as the subject of a sentence or clause. <span style="font-size: 13.008px;">Example: </span><em style="font-size: 13.008px;"><span class="ans">We</span> are here to help you with any problems you may encounter on our website.</em></p>
<p>The possessive pronoun "our" (option B) is used to show ownership or possession. <span style="font-size: 13.008px;">Example: </span><em style="font-size: 13.008px;">Please contact <span class="ans">our</span> service representative for assistance.</em></p>
<p>The possessive pronoun "ours" (option D) is used to show ownership or possession, but it is not used as the object of a verb or preposition. <span style="font-size: 13.008px;">Example: </span><em style="font-size: 13.008px;">The problems on the website are <span class="ans">ours</span> to fix.</em></p>