In a science class, students designed a robot that can water plants. The robot has sensors to detect dry soil. When the soil is dry, it starts watering. The students hope this robot will help farmers grow food in dry areas. For example, in the deserts of the future, this robot can work without human help. The teacher said, 'You are creating solutions for life on Earth and beyond.'
A)The robot only works in deserts.
B)The robot can work without human help.
C)The robot waters plants when the soil is wet.
D)The students designed the robot for fun.