Solve the problem.In hockey, a defenseman's plus/minus record (+/- total) determines his success. If he is on the ice for a goal by the opposing team, he gets a -1. If he is on the ice for a goal by his team, he gets a +1. Suppose that over four games, a defenseman has +/- totals of +3, -1, -2, and +4. Write an expression to determine the average +/- total for the four games.
A. 
B. 
C. 
D. 
Answer: A
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