Which one of the following is not the part of North Atlantic ocean current system?

Answer: Option C

Brazilian current is not the part of North Atlantic ocean current system. Brazil Current, branch of the Atlantic South Equatorial Current, flowing southward in the South Atlantic Ocean along the eastern coast of South America from Cape St. Roque, Brazil, to about latitude 30°–40° S, where the northward-flowing Falkland Current deflects it to the east.