A cubical region of side a has its centre at the origin. It encloses three fixed point charges, -q at (0, -a/4,0), +3qg at (0, 0, 0) and -q at (0, +a/4, 0). Choose the correct option(s).

The net electric flux crossing the plane x = +a/2 is equal to the net electric flux crossing the plane x = -a/2.

The netelectric flux crossing the plane y = +a/2 is more than the net electric flux crossing the plane y = -a/2.

The netelectric flux crossing the entire region is $$\frac{q}{ε_0}$$.

The netelectric flux crossing the plane z = +a/2 is equalto the netelectric flux crossing the plane x = +a/2.