Find the incorrect match:

Which one of the following is odd?

Choose the correct description depicted by the floral diagram.

Units of............ are united or free.

Describe the various parts of a flowering plant with the help of a diagram.

Given below are two statements $:$
Statement $- I :$ The arrangement of ovules within the ovary is known as aestivation.
Statement $- II :$ The mode of arrangement of sepals and petals in floral bud with respect to the other members of the same whorl is known as placentation.
In the light of the above statements,choose the correct answer from the options given below $:$