It's Monday. _____ is Tuesday. [ ]

A. Today        

B. Tomorrow

C. Yesterday    

D. The day after tomorrow

下面对枚举类型的描述正确的是( )。

A．枚举类型的定义为：enum {Monday, Tuesday, Wednesday, Thursday, Friday} Day；

B．在C++语言中，用户自定义的枚举类型的第一个常量的默认值是1

C．可以定义如下枚举类型：enum {Monday, Tuesday, Wednesday=5, Thursday, Friday=5}；

D．以上说法都不正确