Match Column - I with Column - II and select the correct option using the codes given below

Pistils are female reproductive organs and have one or more carpels. The presence of fused carpels refers to the syncarpous stage.Gametogenesis is the process of formation of male and female gametes. Formation of cytoplasmic bridge facilitates transfer to - strain nucleus into ascogonium and formation of dikaryotic hypha in higher ascomycetes. The presence of unisexual female flower is called as pistillate; these flowers lack stamen.