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【单选题】
设S n 是公差为d（d≠0）的无穷等差数列{a n }的前n项和，则下列命题错误的是（ ）A.
若d＜0，则列数{S n }有最大项
B.
若数列{S n }有最大项，则d＜0
C.
若数列{S n }是递增数列，则对任意n∈N * ，均有S n ＞0
D.
若对任意n∈N * ，均有S n ＞0，则数列{S n }是递增数列
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