Final answer:
Eastern Asia is not considered part of the 'New World'; this term generally refers to the Americas and sometimes Oceania, contrasting with the 'Old World' of Europe, Asia, and Africa.
Step-by-step explanation:
The term "New World" typically refers to the Americas and sometimes includes regions like Oceania which comprises Australia, New Zealand, and the Pacific Islands, but not traditionally Eastern or Southeastern Asia. In the context of this question, the region that is not referred to as part of the "New World" is (B) Eastern Asia. This term was coined after European explorers reached the Americas and differentiated the Western Hemisphere from the "Old World" of Europe, Asia, and Africa.