The muscularis externa of stomach, in its middle layer consists of
Oblique muscles
Longitudinal muscles
Circular muscles
No muscles
The muscularis externa is made up of three layers of smooth muscle as follows:
The innermost layer is obliquely-oriented: this is not seen in other parts of the digestive system. This layer is responsible for creating the motion that churns and physically breaks down the food.
The next layer is made up of circular muscles.
It is followed by the longitudinal muscles.
Hence, the correct answer is option c.