Carpels are fused in the flowers of

$A$ typical angiosperm flower consists of four floral parts. Give the names of the floral parts and their arrangements sequentially.

In an epigynous flower,the ovary is situated below the $......$

The keel is a characteristic feature of the flowers of .....

Perigynous type of ovary is found in

Match the placental types (Column-$I$) with their examples (Column-$II$)

Column-$I$	Column-$II$
$(a)$ Basal	$(i)$ Mustard
$(b)$ Axile	$(ii)$ China rose
$(c)$ Parietal	$(iii)$ Dianthus
$(d)$ Free central	$(iv)$ Sunflower

Choose the correct answer from the following options: