Some animals that lived 530 million years ago resembled lancelets but had a brain and a skull. These animals may represent

Some animals that lived 530 million years ago resembled lancelets but had a brain and a skull. These animals may represent 





A) the first chordates.
B) a "missing link" between urochordates and cephalochordates.
C) early craniates.
D) marsupials.
E) nontetrapod gnathostomes.





Answer: C


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