Free central placentation occurs in Dianthus and Primula in which ovules are borne on central axis and septa are absent.

Correct Option: B

Free central placentation occurs in Dianthus and Primula in which ovules are borne on central axis and septa are absent.

In basal type of placentation, the ovary is unilocular with a single ovule. In this, the placenta is at the base of the ovary. It is seen in Polygonum.

Correct Option: B

In basal type of placentation, the ovary is unilocular with a single ovule. In this, the placenta is at the base of the ovary. It is seen in Polygonum.

A flower in which floral parts arise from around the ovary is called perigynous. In this, the ovary is half inferior and half superior. It can be seen in the flowers of plum, peach etc.

Correct Option: B

A flower in which floral parts arise from around the ovary is called perigynous. In this, the ovary is half inferior and half superior. It can be seen in the flowers of plum, peach etc.

Long filamentous threads of maize are the styles of the ovaries. In fact, these are the longest styles in plants.

Correct Option: A

Long filamentous threads of maize are the styles of the ovaries. In fact, these are the longest styles in plants.

Rafflessia is an angiosperm, which produces the largest flowers. It is also a total root parasite.

Correct Option: C

Rafflessia is an angiosperm, which produces the largest flowers. It is also a total root parasite.