Arrange the following layers of microsporangium according to their presence from inside to outside.

Arrange the following layers of microsporangium according to their presence from inside to outside.
(A) Endothecium
(B) Middle layer
(C) Tapetum
(D) Epidermis

Option 1 : A, B, C, D
Option 2 : B, A, C, D
Option 3 : D, C, B, A
Option 4 : C, B, A, D