若要向客户端写入一个名为“username”Click其值为“guest”,1周后过期，则以下实现语句中，错误的是
A. Response．Cookies(“username”)=“guest” Response．Cookies(“username”)．Expires=DateAdd(“ww”,1,Date)
B. Response．Cookies(“username”)=“guest” Response．Cookies(“username”)．Expires=DateAdd(“d”,1,Date)
C.Response．Cookie(“username”)=“guest” Response．Cookie(“username”)．Expires=DateAdd(“ww”,1,Date)
D.Response．Cookies(“username”)=“guest” Response．Cookies(“username”)．Expires=DateAdd(1, “ww”,Date)