What number should replace the question mark? 5, 24, 11, 20, 17, 16, ---?  Choose the correct choice from the following choices
A) 20  B) 23  C) 22  D) 21  E) 26
Answer: 23   5, 24, 11, 20, 17, 16, 23?   There are two alternate sequences: +6 and -4.
<result>B</result>
What number should replace the question mark? 5, 24, 11, 20, 17, 16, ---?