All of the Following Statements Concerning Centrioles Are True EXCEPT

All of the following statements concerning centrioles are true EXCEPT:

A) Centrioles are found in a region of the cell called the centrosome.
B) The structure of centrioles is similar to that of eukaryotic flagella and cilia.
C) Centrioles are composed of microtubules.
D) Centrioles are believed to play a role in cellular processes such as mitosis and cytokinesis.
E) Centrioles are found in all organisms except prokaryotes.