Identify the option that represents the correct configuration of electric field lines due to a combination of one positive and one negative charge.

A charge $q$ is placed at $O$ in the cavity in a spherical uncharged conductor. Point $S$ is outside the conductor. If the charge is displaced from $O$ towards $S,$ still remaining within the cavity,

Assertion: No two electric lines of force can intersect each other.

Reason: Tangent at any point of electric line of force gives the direction of electric field.

 The figure shows the electric lines of force emerging from a charged body. If the electric fields at $\mathrm{A}$ and $\mathrm{B}$ are ${\mathrm{E}}_{\mathrm{A}}$ and ${\mathrm{E}}_{\mathrm{B}}$ respectively and if the distance between $\mathrm{A}$ and $\mathrm{B}$ is $\mathrm{r}$, then

A long cylindrical shell carries positive surface charge $\sigma$ in the upper half and negative surface charge $-\sigma$ in the lower half. The electric field lines around the cylinder will look like figure given in: (figures are schematic and not drawn to scale)