Find the correct statement for the prothallus of a fern.
- AMonoecious,protandrous with multicellular rhizoids.
- BMonoecious,protandrous with unicellular rhizoids.
- CDioecious,with unicellular rhizoids.
- DMonoecious,protandrous with apical antheridia and basal archegonia on the ventral surface.
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