The correct order for the layers of the GI tract wall,from innermost (next to lumen)to outermost is
A)mucosa - submucosa - adventitia/serosa - muscularis.
B)muscularis - mucosa - adventitia/serosa - submucosa.
C)adventitia/serosa - mucosa - submucosa - muscularis.
D)mucosa - submucosa - muscularis - adventitia/serosa.
E)adventitia/serosa - muscularis - mucosa - submucosa.