The nerve chord in earthworm originates from

Options

A. Supra - pharyngeal ganglia and has a fused pair of ganglia in each segment from the `3^(rd)` to the last
B. Supra- pharyngeal gangila and has a fused pair of gangila in each segment form the `4^(th)` to the last
C. Sub- pharyngeal gangila and has fused pair of ganglia in each segment from the `5^(th)` to the last
D. Sub- Pharyngeal ganglia and has a fused pair of ganglia in each segment form the `6^(th)` to the last

Answer

C