<p>I was pleased to receive your response to my proposal but there are one or two points that need <span class="answer">clarification</span>.</p><p><span style="font-size: 13.008px;">The correct answer is (C) </span><span style="font-size: 13.008px;">clarification</span><span style="font-size: 13.008px;">.</span><br></p><div class="explanation"><p>In this sentence, the word "need" indicates that the points require further explanation or understanding. Among the given options, "clarification" is the most appropriate choice because it means to make something clear or easier to understand. The other options do not fit the context of the sentence. "Notification" means the act of informing or giving notice, which does not match the sentence. "Certification" means the process of being officially recognized or approved, which is not necessary in this context. "Signification" means the act of conveying meaning or significance, which is not relevant to the sentence. Therefore, the correct answer is <strong>clarification</strong>.</p></div>