Answer : The correct option is, evaporation
Explanation :
Evaporation : It is a type of process in which the phase changes from liquid state to gaseous state at constant temperature.
Condensation : It is a type of process in which the phase changes from gaseous state to liquid state at constant temperature.
Precipitation : It is a type of process in which the solid is formed when the reaction occurs in liquid solution.
Transpiration : It is a process in which the water moves from roots of the plant to the small pores. That means the movement of water through the plant.
When water changing from a liquid to a gas is an evaporation.
Hence, the correct option is, evaporation.