【单选题】

Man: I really don't know what the best way is to hang this poster without damaging the wall.Woman: Perhaps you should try sellotape. It won't leave a mark.Question: What does the woman mean
A．Sellotape peels off easily.

B．Sellotape is good for the poster.
C．Sellotape is easily available.
D．Sellotape won't show a stain on the poster.