The loss of ability in the mother tongue is mainly caused by the         use of electronic devices and a lack of attention to culture.

A．widespread

B．visual

C．ridiculous

D．precious

有以下程序：point(char *p){p+=3;}main(){char b[4]={''a'',''b'',''c'',''d''},*p=b;point(p);printf("%c\n",*p);}程序运行后的输出结果是______。

A．a

B．b

C．c

D．d