You Propose a Code in Which Each Digit of the Message

Multiple Choice

You propose a code in which each digit of the message word is repeated to form the code word. For example, 101 is coded as 110011. Which of the following is a true statement?

A) The code can detect and correct any single-digit error and any double error.
B) The code can detect and correct any single-digit error and detect any double error, but cannot correct every double error.
C) The code can detect and correct any single-digit error, but it cannot detect every double error.
D) The code can detect any single-digit error, but it cannot correct every single-digit error.