Which of the following is falseabout dynamic instability of a microtubule end? A) During a growth phase, assembly of GTP-tubulin is faster than incorporated GTP is hydrolyzed, forming a GTP-cap. B) During a catastrophe phase, hydrolysis of incorporated GTP is faster than GTP-tubulin addition, forming a GDP-cap. C) During rescue, GTP-tubulin assembles fast enough to reestablish a GTP cap. D) Each end of a microtubule can undergo dynamic instability independently. E) All answers are true.