Answer:
Option C, Cones
Step-by-step explanation:
In Gymnosperm, male microspore and female megaspores are generated in sporangia which are carried by cones/strobili.
Strobili consists of a short stem with leaves known as sporophyll on which sporangia is found. The sporangia producing the male microspore and female megaspore are found on separate cones. The male cone is known as staminate cone and the female cone is known as ovulate cone.
Thus, option C is the correct answer