The nerve plexus that lies in the muscularis layer of the alimentary canal and is responsible for motility, especially the rhythm and force of the contractions of the muscularis is
Myenteric plexus
Submucosal plexus
Meissner's plexus
Mucosal plexus
The myenteric plexus (plexus of Auerbach) lies in the muscularis layer of the alimentary canal and is responsible for motility, especially the rhythm and force of the contractions of the muscularis. Hence, the correct answer is option 1.