The sentence in which the pronoun and the antecedent are not in agreement is option C. If the bus is late, he will be late to class. In the first clause, the subject of the sentence is the word "bus", and in the next clause, the subject changed to "he" and the pronoun he does not clearly state its antecedent.
<h2><em>So</em><em> </em><em>That</em><em> </em><em>-</em><em> </em><em>I</em><em>t</em><em> </em><em>tells us for what purpose something is done</em></h2>
