单项选择题

x=4;y=6;z=2;items=x+y+z,cost=x*25+y*22+z*99,average_cost=cost/items 运行由这6个语句构成的MATLAB程序,会在命令窗口显示哪些变量的值?
A、x,y,z
B、items, cost
C、average_cost
D、items, cost, average_cost

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