Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
W _ _ S D _ E A S _ W _ A _ D W E A _ _

Given: W _ _ S D _ E A S _ W _ A _ D W E A _ _

Logic: We have to put each option in the blank space when any option gives us a proper logical series that will be correct option.

From option (a):EAWESESD

W EA S D W E A S E W S A E D W E A SD (not follows logical pattern)

From option (b):EAWDSESD

W EA S D W E A S D W S A E D W E A SD (not follows logical pattern)

From option (c):EAWSEESD

W EA S D W E A S S W E A E D W E A SD (not follows the logical pattern)

From option (d):EAWDESSD

W EA S D / W E A S D/ W E A S D/ W E A SD (Follows logical pattern)