题目内容

若有以下定义，能正确输出letter成员值为'D'的语句是（）。struct Table {int id; char letter; };struct Table a[5]={{1,'A'},{2,'B'},{3,'C'},{4,'D'},{5,'E'}};

A. printf("%c\n",a[3].letter);
B. printf("%c\n",a.letter);
C. printf("%c\n",letter);
D. printf("%c\n",a.letter[3]);

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