Julie and Devon are modeling how the Sun heats Earth. Julie hangs a sheet of graph paper on a wall. Devon holds a flashlight and shines it in a straight line toward the graph paper while Julie dims the lights in the classroom. The diagram shows their model of the Sun heating Earth at the equator. How can the students change their model to represent how the Sun heats Earth in places where the climate is cold all year?

A) They can tilt the angle of the graph paper.
B) They can use graph paper with larger squares.
C) They can use a flashlight with a narrower beam of light.
D) They can move the flashlight farther away from the graph paper.