On Teacher's Day, we all went to school ____ to see   our teachers.    [      ]

A. especially                    

B. specially    

C. particularly                    

D. attentively

有以下程序： main( ) { char * p[10]={"abc","aabdfg","dcdbe","abbcf',"cd"}; printf("%d\n",strlen(p[4])); } 执行后的输出结果是 ______。

A．2

B．3

C．4

D．5