4. In a CRC error-detecting scheme, choose G(x)-x" + x + 1. a. Encode the bits 10010011011 b. Suppose the channel introduces an error pattern 10001000000000 (i.e., the channel flips a bit from 0 to 1 or 1 to 0 in position 1 and 5). Show the message that is received. Can the error be detected? c. Repeat (b) with error pattern 10001100000000. Show the message received. Can the error bit be detected