Look at this series: 23, 22, 24, 23, 25, 24, ... What number should come next?	Select the correct option:
A) 20 B) 26 C) 28 D) 21 E) 22
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.   23-1= 
<gadget id="calculator">23-1</gadget>
<output>22</output>
22   22+2= 
<gadget id="calculator">22+2</gadget>
<output>24</output>
24   24-1= 
<gadget id="calculator">24-1</gadget>
<output>23</output>
23   23+2= 
<gadget id="calculator">23+2</gadget>
<output>25</output>
25   25-1= 
<gadget id="calculator">25-1</gadget>
<output>24</output>
24   24+2= 
<gadget id="calculator">24+2</gadget>
<output>26</output>
26   Answer is 26
<result>B</result>
Look at this series: 23, 22, 24, 23, 25, 24, ... What number should come next?