Three large parallel plates have uniform surface charge densities as shown in the figure. What is the electric field at P?

Options

• Option A

  $\frac{-4\sigma}{\varepsilon_{\omicron}}\hat{k}$

• Option B

  $\frac{4\sigma}{\varepsilon_{\omicron}}\hat{k}$

• Option C

  $\frac{-2\sigma}{\varepsilon_{\omicron}}\hat{k}$

• Option D

  $\frac{2\sigma}{\varepsilon_{\omicron}}\hat{k}$