单项选择题

执行以下程序段后,变量c$的值为______ 。
a$=“Visual Basic Programing”
b$=“Quick”
c$= b$ & UCase (Mid$(a$,7,6))&Right $,(a $,11)

A.Visual BASIC Programing
B.Quick Basic Programing
C.QUICK Basic Programing
D.Quick BASIC Programing