3,6,13,26,33,66,?	Pick one.
A) 70
B) 71
C) 72
D) 73
E) 74
3*2= 
<gadget id="calculator">3*2</gadget>
<output>6</output>
6   6+7= 
<gadget id="calculator">6+7</gadget>
<output>13</output>
13   13*2= 
<gadget id="calculator">13*2</gadget>
<output>26</output>
26   26+7= 
<gadget id="calculator">26+7</gadget>
<output>33</output>
33   33*2= 
<gadget id="calculator">33*2</gadget>
<output>66</output>
66   so next will be   66+7= 
<gadget id="calculator">66+7</gadget>
<output>73</output>
73   ANSWER:73
<result>D</result>
3,6,13,26,33,66,?