Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?	Choose the most appropriate option:	A) IX	B) XXIII	C) XVII	D) XV	E) X
XVII   XVII   This is a simple addition series; each number is 3 more than the previous number.
<result>C</result>
Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?