27. Which of the following statement(s) regarding cytoskeleton is correct? 1. made from the repetitive assembly and disassembly of dynamic protein components 2. comprising the cytoskeleton are microtubules, intermediate filaments, and actin filaments 3. in neurons, intermediate filaments is also called neurofilaments
(A) All of above are correct
(B) 1 and 3 are correct
(C) 2 and 3 are correct
(D) 3 only is correct
(E) 2 only is correct