To get pattern $001100110011$
Process $p$ should be executed first then Process $Q$ should be executed
So, at Process $P$ : $\mathbf{W}$ $P(S)$ $\mathbf{X}$ $V(T)$
And at Process $Q$ : $\mathbf{Y}$ $V(T)$ $\mathbf{Z}$ $V(S)$
With $\mathbf{S=1}$ and $\mathbf{T=0}$ initially ( only $\mathbf{P}$ has to be run first then only $\mathbf{Q}$ is run , both process run on alternet way start with $\mathbf{P}$)
So, answer is (B).