Read the following context and choose the best option to answer the question.
Context: So , while outside the other day , I thought that I had free roam of the grounds , but all of a sudden , this little imp popped up . I wonder if I can make him a minion of mine ? We must see . Hmmm , I think he want 's to take my head off .
Question: What caused surprise in the narrator on the grounds ?
Options: 
A. They saw something without its head .
B. They saw a minion of theirs .
C. They saw a large giant .
D. They saw an imp .


D