Starting from the Inside of the Esophagus and Going to the Outside,the

Multiple Choice

Starting from the inside of the esophagus and going to the outside,the layers of the digestive tract in sequence are

A) serosa $\rightarrow$ smooth muscle $\rightarrow$ submucosa $\rightarrow$ mucosa.
B) serosa $\rightarrow$ submucosa $\rightarrow$ smooth muscle $\rightarrow$ mucosa.
C) mucosa $\rightarrow$ smooth muscle $\rightarrow$ submucosa $\rightarrow$ serosa.
D) mucosa $\rightarrow$ submucosa $\rightarrow$ serosa $\rightarrow$ smooth muscle.
E) mucosa $\rightarrow$ submucosa $\rightarrow$ smooth muscle $\rightarrow$ serosa.