Find out whether there is any grammatical error in below sentence. It is an established fact that the transcendental American poets and philosophers. / who lived in the latter half of the nineteenth century. / were more influenced by Indian philosophy, in particular by Upanishadic Philosophy.

• A. No error
• B. who lived in the latter half of the nineteenth century
• C. It is an established fact that the transcendental American poets and philosophers
• D. were more influenced by Indian philosophy, in particular by Upanishadic Philosophy

Answer: (D)