Which of the Following Statements Is the BEST Description of Investing

Which of the following statements is the BEST description of investing fascia?

A) It is a tube of deep cervical fasciae,deep to the sternocleidomastoid muscle,running inferiorly along each side of the neck from the base of the skull to the thorax.
B) It is the most external layer of deep cervical fasciae that surrounds the neck,continuing onto the masseteric-parotid fascia.
C) It is a single midline tube of deep cervical fasciae running inferiorly along the neck,surrounding the airway and food way,including the trachea,esophagus,and thyroid gland.
D) It is the deepest layer of the deep cervical fasciae,which covers the vertebrae,spinal column,and associated muscles.