With regards to the anorectal angle, what is true

Answer- A. It distributes intraabdominal forces onto the pelvic floor and plays and impoant role in continence mechanismAt rest the puborectalis muscle creates a 'sling' around the distal rectum, forming a relatively acute angle (Anorectal angle).It is 90 to 100 degrees at rest.Both the internal and external sphincters are innervated by pudendal nerve.