Solution

Cycas is an evergreen palm like plant. It belongs to order cycadales of gymnosperms. The plant body is sporophytic differentiated into root, stem and leaves; sexual reproduction is of oogamous type takes place by the fusion of distinct male and female gametes. The male and female gametes are formed by the germination of microspores and megaspores which are borne on microsporophylls and megasporophylls. 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. Hence option C is correct.