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) Some critics of contemporary music (B) maintain that quality lasts and that (C) most of what is produced today musically disappears (D) highly quickly. (E) No error.