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

Answer: (A)