Which one of the following is the true description about an animal concerned?

Earthworm - The nerve cord in the anterior region bifurcates, laterally encircling the oesophagus and joins the cerebral ganglia dorsally to form a nerve ring

Cockroach - The nervous system consists of a series of fused, segmentally arranged ganglia joined by paired longitudinal connectives on the dorsal side

Frog - Control and coordination is brought about by both neural system and endocrine glands

Tapeworm - Control and coordination is brought about by non-polarised neurons that form nerve nets