假定和分别是定义在集合上的两个一元函数,是定义在集合上的二元函数,并且,,;,。 根据上述定义,下列选项正确的是()。
A <img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251120/22942783_0_9.png"> B
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251120/22942783_0_10.png"> C
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251120/22942783_0_11.png"> D
<img border="0" alt="" src="https://tuku.weimei168.com/uploads/upimg/20251120/22942783_0_12.png">