These events occur during the development of the nervous system: a: Neural groove formsb: Neural folds approach one anotherc: Neural crest cells pinch off from the neural foldsd: Neural folds fuse to form neural tubeWhich is the correct chronological order for the events?
A. b a, d, c
B. c a, b, d
C. c, b, d, a
D. a, c, b, d
E. a, b, c, d
Answer: E
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