What is the ploidy of the spore mother cells in bryophytes?

The male gametes of bryophytes are . . . . . . .

Read the following statements$-$
$(i)$ The plant body of bryophytes is less differentiated than that of algae.
$(ii)$ The main plant body of the bryophytes is haploid.
$(iii)$ Sex organs in bryophytes are unicellular.
$(iv)$ Zygotes do not undergo reduction division immediately in bryophytes.
$(v)$ Bryophytes depend on insects for sexual reproduction.
How many of the above statements are correct?

Assertion $(A)$: $Riccia$ is a very simple and primitive bryophyte.
Reason $(R)$: In $Riccia$,after fertilization,the zygote undergoes division to form an embryo.

Dichotomous branching is found in

The dehiscence of a moss capsule takes place by the rupture of: