Sean enjoys studying the stars. he used a photometry tool to calculate several stars' apparent magnitudes (how bright a star looks in the sky). he then researched the stars' distances from earth. he recorded his results in the table below. star apparent magnitude distance from earth sirius a -1.47 8.6 light-years alpha centauri a -0.01 4.4 light-years rigel 0.12 770 light-years procyon 0.34 11 light-years alpha centauri b 1.33 4.4 light-years what conclusions can sean draw from his chart? a. a star's apparent magnitude increases as its distance from earth increases. b. a star's apparent magnitude is not directly related to its distance from earth. c. a star's apparent magnitude decreases as its distance from earth increases. d. a star's apparent magnitude decreases if it is very close to another star.