Together, Kinley and Michael have 31 video games. Kinley has 7 more games than Michael. Which system of equations can be used to determine the number of games Kinley has, k, and the number of games Michael has, m?
O A. K+ m = 7
k = m - 31
OB. K + m = 31
k=m+7
OC. K + m - 7
mk-31
D. K + m = 31
m=k+ 7