A conducting sphere of radius $R$ is given a charge $Q.$ The electric potential and the electric field at the center of the sphere respectively are:

This is a learning based question where we have to choose the option which is correct for the electric potential and electric field at the centre of the sphere.

For a conducting sphere
Electric field at centre $=0$
Potential at centre $=\frac{kQ}{R}=\frac{Q}{4\pi {\epsilon }_0 R}$

So Option (2) will be correct.