The correct answer is C. vivid.
A vivid description is one that is full of detail and is easy to picture in your mind. It is often used in literature and film to create a strong impression on the reader or viewer.
A vague description is one that is not very detailed and is difficult to picture in your mind. It is often used in everyday conversation when you do not need to be very specific.
A broad description is one that is general and does not give much detail. It is often used when you are trying to give a general overview of something.
A drawing is a picture that is made by hand. It can be used to describe something in a visual way.
In the context of the question, the small boy was able to give a detailed description of the thief. This means that his description was vivid, not vague, broad, or a drawing.