s是个自然数，下列表达式能判断数字s是一个三位数奇数的是（   ）

A、0<s\100<=9 And s Mod 2=1

B、s\100>0 Or s\100<=9 And s\2<>s/2

C、s\1000=0 And s\100>0 And s\2<>s/2

D、Not(s\1000>0 0r s\100<=0) Or s\2<>s/2