Question 4: Which of these is not something an error detection or correction code does? i. Detect a single error in a word of data using a single additional bit ii. Correct error more efficiently than simple replication iii. Retransmit data which is determined to be corrupt iv. Increase the bandwidth capacity of a link (A) iii and iv only (B) all of i-iv (C) iv only (D) ii and iii only