What is the ploidy of the spores in Bryophytes?

Bryophytes are called the amphibians of the plant kingdom because:

In $Bryophyta$,the adult plant body is:

Which of the following plants has a haploid and autotrophic gametophyte?

Which of the following is considered the first land-inhabiting plant?

Choose the correct statement about liverworts.
$I.$ In liverworts,sexual reproduction occurs by the fusion of antherozoids and egg,which are produced in antheridium and archegonium,respectively.
$II.$ Both male and female sex organs may be present on the same thallus or different thalli.
$III.$ The zygote gives rise to a sporophyte,which is differentiated into foot,seta,and capsule.
$IV.$ Some cells of the capsule undergo meiosis and give rise to haploid spores.