If the number of chromosomes in the foot of a fern embryo is $8$,what should be the number of chromosomes in its spores?

The fern prothallus is:

Identify the plant shown in the given figure.

Leaf of which of the following plants shows circinate vernation at the young stage?

Select the incorrect statement for $Pteridophytes$.

Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence.
$A.$ Prothallus stage
$B.$ Meiosis in spore mother cells
$C.$ Fertilisation
$D.$ Formation of archegonia and antheridia in gametophyte.
$E.$ Transfer of antherozoids to the archegonia in presence of water.
Choose the correct answer from the options given below.