脊髓的颈膨大和腰骶膨大对应的脊髓节段为()
A. C<sub>3</sub>~T<sub>1</sub>和L<sub>2</sub>~S<sub>3</sub>
B. C<sub>4</sub>~T<sub>1</sub>和L<sub>4</sub>~S<sub>3</sub>
C<sub>6</sub>~T<sub>2</sub>和L<sub>2</sub>~S<sub>2</sub>
D. C<sub>6</sub>~T<sub>1</sub>和L<sub>3</sub>~S<sub>3</sub>
E. C<sub>4</sub>~T<sub>1</sub>和L<sub>2</sub>~S<sub>3</sub>