What is the minimum haploid number $(n)$ of chromosomes found in the plant kingdom?

Thallophytes are

Which of the following is not a group of flowering plants (Angiosperms)?

Common characteristic between bryophytes and pteridophytes is

Which plant group exhibits a haplo-diplontic life cycle pattern?

Read the following five statements $(A-E)$ and answer as asked next to them.
$(A)$ In $Equisetum$, the female gametophyte is retained on the parent sporophyte.
$(B)$ In $Ginkgo$, male gametophyte is not independent.
$(C)$ The sporophyte in $Riccia$ is more developed than that in $Polytrichum$.
$(D)$ Sexual reproduction in $Volvox$ is isogamous.
$(E)$ The spores of slime moulds lack cell walls.
How many of the above statements are correct?