Water potential is maximum in

Answer: Option C

Water potential is the potential energy of water per unit volume relative to pure water in reference conditions. It quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical and matrix effects such as capillary action.
In terms of plants, water potential is the measure of potential energy in water and drives the movement of water through plants.
Among all the parts of plants, water potential is maximum in Leaves.