The pictures below that has more potential energy is Picture B. It has more potential energy than picture A.
Potential energy is the energy stored in an object due to its position or configuration. In this case, the rubber band in picture B is stretched, which means that it is storing energy in its elastic bonds.
When the rubber band is released, this energy will be converted into kinetic energy, causing the rubber band to snap back. The rubber band in picture A is not stretched, so it is not storing any potential energy.
So, When a rubber band is stretched, the elastic bonds between the rubber molecules are pulled apart. This requires energy, which is stored in the rubber band as potential energy