A 19-year old was hit from behind and thrown off his motorbike. Despite wearing a helmet, he suffered severe facial lacerations. When repairing a facial laceration, it is important to test all aspects of the facial nerve. To check if the zygomatic branch is intact, which of the following tasks will you perform?
A. Contract the forehead and elevate the eyebrow
B. Open and shut the eyes
C. Smile
D. Frown