Unlike bryophytes and pteridophytes, in gymnosperms the male and the female gametophytes do not have an independent free-living existence. They remain within the sporangia retained on the sporophytes.
The leaves may be simple or compound. In Cycas the pinnate leaves persist for a few years and stems are unbranched (Cycas) In cycas male cones and megasporophyll are borne on different trees (dioecious). Male gametes of Cycas are multiciliated, topshaped, equal and the largest in plant kingdom. It is spirally coiled in the anterior half with thousands of small cilia.
So, out of the given statements, "option D" is the wrong statement.