Level V Lymph nodes include:: (A) Pretracheal & Prelaryngeal  lymph nodes, (B) Mediastinal lymph nodes, (C) Lower juglar lymph nodes, (D) Posterior triangular lymph nodes
Answer is D. Level IA: Submental
Level IB: Submandibular
Level II: Upper juglar
Level III: Middle juglar
Level IV: Lower juglar
Level V: Posterior triangle lymph nodes
Level VI: Central
Level VII: Mediastinal.