Which of the following statements are correct regarding centrosomes and centrioles?
(i) Centrosome is an organelle usually containing 3 cylinder structures and centrioles
(II) They are surrounded by amorphous pericentriolar materials
(iii) They are made up of nine evenly spaced peripheral fibrils which are doublet
(iv) The centrioles form the basal body of cilia and flagella and spindle fibres that gives rise to spindle apparatus during cell division in animal cells.
(A) only (ii) and (iv) are correct
(B) Only (i) and (iv) are correct
© Only (iii) and (iv) are correct
(D) All except (iv) are correct.