In a recent golf match, Desmond’s score was 3 less than George’s score. Their combined scores totaled 187. Let d represent Desmond's score and g represent George's score. Which pair of equations can be used to determine their scores?
a. d + g = 3
187 + d = g
b. d + g = 187
d – g = 3
c. d = g – 3
d + g = 187
d. g = d – 3
d + g = 187
please explain as well