Answer: Option (A) is the correct answer.
Explanation:
Precipitation is defined as the occurrence of a solid substance due to the reaction between solid of liquids in water cycle. This precipitate appears in the form of rain, sleet or snow etc on the surface of earth.
Precipitation process occurs in clouds due to which snow, rain etc falls from clouds to the ground.
Thus, we can conclude that the student should draw an arrow pointing from a cloud to the ground to illustrate precipitation.