Kim and her sister play a game. At the end of the game, Kim has 65 points and her sister has -12 points. What is the difference between kim's score and her sister's score?

A. 53*
B. 77
C. -53
D. -77

Difference between Kim's score and sister's score =

Kim's score - sister's score = 65 - ( - 12 ) = 65 + 12 = 77

Answer B.