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.

• A
  $I, II$ and $III$
• B
  $II, III$ and $IV$
• C
  $I, III$ and $IV$
• D
  $I, II, III$ and $IV$