Directions: The sentence contains either a single error or no error at all. If the sentence contains an error, select the one underlined part that must be changed to make the sentence correct. If the sentence is correct, select choice (E). In choosing the answers, follow the requirements of standard written English.

(A) The universe is conceived (B) as a thorough going dualistic affair in which (C) matter and spirit, good and evil were not only opposite in nature but forever at war with (D) each other. (E) No error.