Insert the missing number.
8, 7, 11, 12, 14, 17, 17, 22, (....)  Choose the correct option:  A) 27  B) 20  C) 22  D) 24  E) 26
There are two series (8, 11, 14, 17, 20) and (7, 12, 17, 22) increasing by 3 and 5 respectively.   answer : 20
<result>B</result>
Insert the missing number.
8, 7, 11, 12, 14, 17, 17, 22, (....)