To solve this problem, we need to identify the type of flowers based on the position of the calyx, corolla, and androecium with respect to the ovary in the given figures.$\newline \bullet$In figure (a), the ovary is positioned above the other floral parts (calyx, corolla, and androecium). This is characteristic of a hypogynous flower, where the ovary is superior.$\newline \bullet$In figure (b), the ovary is positioned below the other floral parts, which are attached to the receptacle above the ovary. This is characteristic of an epigynous flower, where the ovary is inferior.$\newline$Now, let's match the figures with the correct flower types:$\newline$(a) Hypogynous; (b) Epigynous$\newline$This corresponds to Option 4.