Which set contains the most closely related terms mega spora

Which set contains the most closely related terms? mega sporangium, megaspore, pollen, ovule microsporangium, microspore, egg, ovary mega sporangium, megaspore, egg, ovule microsporangium, microspore, carpel, ovary which of the following would be considered a multiple fruit? apple.

Solution

answer is 3 becuse all are plant reproductive parts of female flower ,megasproingium, megaspore, egg and ovule all belong to female areas ... where as microspore and pollen anther are male flower related terms