Which of the following is a true statement?
a) The orbicularis oculi muscle raises the eyebrows and the masseter closes the jaw.
b) The buccinator muscle closes the jaw, the zygomatic muscle is used in smiling.
c) The masseter closes the jaw and the orbicularis oris closes the lips.
d) The buccinators muscle is used for whistling and the orbicularis oris closes the jaw.