【答案】
分析:分別把4322變成(4321+1),1234變成(1233+1),再根據乘法分配律,進行運算,據此解答.
解答:A=4322×1233,
A=(4321+1)×1233,
A=4321×1233+1233;
B=4321×1234,
B=4321×(1233+1),
B=4321×1233+4321,
4321×1233+1233<4321×1233+4321,
故答案為:C.