单选题 The passage implies that all of the following true is true concerning classical means of error correction EXCEPT

• (A) The string 1110 should be interpreted to represent 1
• (B) The string 2020 should be interpreted to indicate the presence of noise
• (C) A four digit code is more likely to be accurate than a three digit code
• (D) It is permissible to duplicate the bits in a code
• (E) Three digits in agreement, such as 111, indicate the absence of degradation