单项选择题

若f(x)<0成立,则g(x)≤0必须成立;若f(x)<0不成立,则g(x)无限制。引入一个0-1变量y来解决这一逻辑关系:<br> A、f(x)≥-M(1-y) g(x)≤My

B、f(x)≥-My g(x)≤My
C、f(x)≥-M(1-y) g(x)≤M(1-y)
D、g(x)≥-M(1-y) f(x)≤My