Use the spectrum readings from the sun (upper) and a star (lower) to answer the question.

Which inference can be made from the spectrum readings?

A: there is a blue shift, which means that the star is moving away from the sun.
B: There is a blue shift, which means that the star is moving toward the sun.
C: There is a red shift, which means that the star is moving toward the sun.
D:There is a red shift, which means that the star is moving away from the sun.

The inference that can be made from the spectrum readings is D: There is a red shift, which means that the star is moving away from the sun.