The correct answer is:
Option D: Evapotranspiration
Water is removed both from the plants and the soil. Evapotranspiration is a process by which the water is removed from plants and ground and is added back into the atmosphere. From ground, water is removed in the form of evaporation from the soil. And from plants the water is removed by transpiration. Hence the term Evapotranspiration.
It's a third phosphate group. DP stands for diphosphate, and "di" means two.
TP stands for triphosphate, and "tri" means 3.