The cervical plexus is formed by the
A. anterior rami of spinal nerves C3-C7.
B. posterior rami of spinal nerves C2-C6.
C. anterior rami of spinal nerves C1-C4.
D. posterior rami of spinal nerves C4-C8.
E. rami communicantes of spinal nerves C1-C7.
Answer: C
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