Archegoniophore is present in
The genus of Marchantia has light green thalloid bodies that are firmly fixed to the substratum. The thallus, which is irregularly branched has a darkened band of cells along the center of the thallus. While the antheridiophore has a flat surface with antheridial opening to aid is sperm dispersal, the archegoniophore represents an umbrella with archegonia, located on the lower surface of the archegoniophore.
Therefore, the correct answer is option A.