Patient suffering from a submandibular gland abscess, dentist made a stab incision and is fixing a rubber drain to evacuate the pus

Patient suffering from a submandibular gland abscess, dentist made a stab incision and is fixing a rubber drain to evacuate the pus, the drain is sutured to:

A- Intra-oral between the myeloid muscles.

B- Extra orally from the most fluctuant point.***

C- Extra orally under the chin.

D- From angle of the mandible

Or angle of the mandible???