一个四输入的与非门，使其输出为0的输入变量取值组合有（      ）。

A、<span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">15</span><span style="font-size:16px;font-family:楷体_GB2312">种</span>

B、<span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">1</span><span style="font-size:16px;font-family:楷体_GB2312">种</span>

C、<span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">3</span><span style="font-size:16px;font-family:楷体_GB2312">种</span>

D、<span style="font-size:16px;font-family:&#39;Times New Roman&#39;,&#39;serif&#39;">7</span><span style="font-size:16px;font-family:楷体_GB2312">种</span>