Which of the following is true for the transverse section of a typical microsporangium of angiosperms?

a. It is generally surrounded by four wall layers - epidermis, endothecium, middle layers and tapetum

b. The outer three wall layers perform the function of protection and help in dehiscence of anther to release the pollen

c. Tapetum is the outermost layer

 

• A

  a and b

• B

  b and c

• C

  a and c

• D

  a, b and c