32. How is plant cell cytokinesis different from animal cell cytokinesis? (A) The contractile filaments found in plant cells are structures composed of carbohydrates； the cleavage furrow in animal cells is composed of contractile phospholipids. (B) Plant cells deposit vesicles containing cell-wall building blocks on the metaphase plate； animal cells form a cleavage furrow. (C) The structural proteins of plant cells separate the two cells； in animal cells, a cell membrane separates the two daughter cells. (D) Plant cells divide after metaphase but before anaphase； animal cells divide after anaphase.