Correct Answer - D
In bryophytes, zygote is the beginning of the sporophytic generation. Within venter of the archegonium, the zygote undergoes segmentation and develops without a resting period into a multicellular, undifferentiated structure called embryo. The embryo by further segmentation and differentiation finally develops into a full fledged sporophyte, called sporogonium. Cell of sporogonium undergo meiosis to produce spores.
