Identify the correct statements among the following:
$A.$ Heterospory is found in all members of Pteropsida.
$B.$ Selaginella is advanced among pteridophytes as it produces seeds.
$C.$ Pinus leaves are monomorphic,pinnate compound and have sunken stomata as an adaptation against transpiration.
$D.$ Sporic meiosis is characteristic of the life cycle in many organisms like Volvox,Chlamydomonas and Ulothrix.

• A
  All are incorrect
• B
  Both $B$ and $C$ are correct
• C
  Only $B$ is correct
• D
  Only $D$ is incorrect