Three infinitely long charged sheets are placed as shown in figure. The electric field at point ...

Three infinitely long charged sheets are placed as shown in figure. The electric field at point \( P \) is
(A) \( \frac{2 \sigma}{E_{a}} \hat{k} \)
(B) \( -\frac{2 \omega}{\varepsilon_{r}} \hat{k} \)
(C) \( \frac{4 \sigma}{E_{a}} \hat{k} \)
(D) \( -\frac{4 \sigma}{\varepsilon_{a}} \vec{k} \)