Regarding transverse section of gut - Identify the structures marked as B,C in order in the picture and they constitute G-Identify G

Question

( a ) inner circular layer, outer longitudinal layer; Muscularis propria
( b ) sub-mucosa, mucosa; serosa
( c ) inner longitudinal layer, outer circular layer; Muscularis propria
( d ) muscularis, serosa; Muscularis propria