What Is the Purpose of Placing a Small Towel Under

What is the purpose of placing a small towel under the occiput of a 4-year-old patient who is undergoing oral intubation?

A) To prevent unnecessary pressure from being exerted on the occiput
B) To enable the clinician to more easily move the patient's tongue to the left
C) To obtain a better alignment and visualization of the airway
D) To assist in maintaining the patency of the upper airway