What Should come in place of the question mark in the following number series ?
Q. 5 8 10 12 16 (?)	Pick one:
A) 15	B) 18	C) 17	D) 21	E) 23
Explanation :   The series is 5, and 5 + odd prime numbers  5 + 3= 
<gadget id="calculator"> 5 + 3</gadget>
<output>8</output>
8, 5 + 5= 10, 5 + 7 = 12, 5+ 11 = 16, 5 + 13 = 18   Answer : Option 18
<result>B</result>
What Should come in place of the question mark in the following number series ?
Q. 5 8 10 12 16 (?)