已知⊙O的半径为5,若PO=4,则点P与⊙O的位置关系是( )
A:点P在⊙O内
B:点P在⊙O上
C:点P在⊙O外
D:无法判断
Tom seldom, ______, paid for the software on his computer. That is, he used lots of pirated software.