Which of the following fractions is at least twice Smaller than 13/50?  Select the correct option:
A) 2/5  B) 11/34  C) 9/20  D) 8/21  E) 43/99
Answer 9/20   13/50= 
<gadget id="calculator">13/50</gadget>
<output>13/50 = around 0.26</output>
0.26   9/20= 
<gadget id="calculator">9/20</gadget>
<output>9/20 = around 0.45</output>
0.45 which is 0.07 smaller than two times of 0.26
<result>C</result>
Which of the following fractions is at least twice Smaller than 13/50?