Which of these nerves is responsible for this pain?

A 28 year-old man has a minor injury as a result of motor car accident. He complains of severe pain due to a scratch on his scalp across the front hairline.
Which of these nerves is responsible for this pain?

A-Trigeminal nerve
B-Facial nerve
C-Vagus nerve
D-Oculomotor nerve
E-Orbital nerve