The mean proportional between 4 and 9 is?	Select the correct option:
A) 21
B) 35
C) 44
D) 12
E) 11
7/20 * 100= 
<gadget id="calculator">7/20 * 100</gadget>
<output>35</output>
35   Answer: 35
<result>B</result>
The mean proportional between 4 and 9 is?