Which of the following is the type of placentation seen in sweet pea?(A) Basal(B) Axial(C) Free central(D) Marginal

The type of placentation seen in sweet pea (Lathyrus odoratus) is axial placentation.

Here’s a detailed explanation of placentation types:

Basal placentation: The ovule is attached to the base of the ovary.
Axial placentation: The ovules are attached to a central column along the axis of the ovary.
Free central placentation: The ovules are attached to a central column, but there are no partitions in the ovary.
Marginal placentation: The ovules are attached along the edge of the ovary.
In sweet pea, the ovules are attached to the central axis of the ovary, making the placentation type axial.

So, the correct answer is (B) Axial.