A) A-Ventral vessel, B-Subneural vessel, C-Commissural vessel, D-Dorsal vessel
B) A-Subneural vessel, B-Ventral vessel, C-Dorsal vessel, D-Commissural vessel
C) A-Dorsal vessel, B-Commissural vessel, C-Subneural vessel, D-Ventral vessel
D) A-Commissural vessel, B-Dorsal vessel, C-Ventral vessel, D-Subneural vessel
Explanation
A-Dorsal vessel, B-Commissural vessel, C-Sub neural vessel, D-Ventral vessel