Compare each option to 12.<br><br>
&bull; A: 1 ten 9 ones = 19. 19 &gt; 12. &#10007;<br>
&bull; B: 13 ones = 13. 13 &gt; 12. &#10007;<br>
&bull; C: 1 + 10 = 11. 11 &lt; 12. &#10003;<br>
&bull; D: 10 + 7 = 17. 17 &gt; 12. &#10007;<br><br>
Final Answer: C: 1 + 10