It's most possible D) the pattern of the wallpaper
What scene is it? if I'm right I think the scene is after they(Macbeth and Lady Macbeth) kill Duncan, right?
Direct object is D. A NOUN, PRONOUN, OR WORD GROUP THAT RECEIVES THE ACTION OF THE VERB.
Direct object follows a transitive verb (action verb) not a linking verb. It is always placed after the verb not before it. It receives the action not modifies the action verb.
And so is your teacher, isn't she?