Which of the State Vectors Below Is Not Physically Equivalent $|-y\rangle$

Multiple Choice

Which of the state vectors below is not physically equivalent to $|-y\rangle$ ?

A) $\left[\begin{array}{l}-\sqrt{1 / 2} \\ i \sqrt{1 / 2}\end{array}\right]$
B) $\left[\begin{array}{l}i \sqrt{1 / 2} \\ \sqrt{1 / 2}\end{array}\right]$
C) $\left[\begin{array}{l}-i \sqrt{1 / 2} \\ -\sqrt{1 / 2}\end{array}\right]$
D) $\left[\begin{array}{l}e^{i \pi / 6} \sqrt{1 / 2} \\ e^{-i \pi / 3} \sqrt{1 / 2}\end{array}\right]$
E) They are all equivalent.