Which of the following is the odd one out?

What is the correct description for the internal structure of cilia and flagella?

Identify the incorrect statement regarding the centrosome and centriole.
$(a)$ The centrosome is surrounded by amorphous pericentriolar material.
$(b)$ In the centrosome,both centrioles lie parallel to each other,and both have a cartwheel-like structure.
$(c)$ The centriole is made up of peripheral tubulins from unspecified locations.
$(d)$ The central part of the centriole is a proteinaceous hub.

Each centriole has a cartwheel organization having a whorl of tubulin fibrils at the periphery. These peripheral fibrils are composed of how many microtubules?

Which of the following is a protein found in cilia?

The arrangement of microtubules in a centriole is described as $...........$.