How do the temperature and potential energy of solid and liquid water differ at zero degrees Celsius?

Both temperature and potential energy are the same for solid and liquid water.
The temperature is higher, but the potential energy is lower in liquid water.
The temperature is the same, but the potential energy is higher in liquid water.
The temperature is lower, but the potential energy is higher in liquid water.

The temperature is the same, but the potential energy is higher in liquid water.