-5: In a CRC error-detection scheme, choose P(x) = 4 + 2 + 1 + 1 a. Encode the bits 10010011011 b. Introduce an error pattern 100010000000000 (i.e invert the digit in the code word where "I" appears in the error pattern sequence.) and see if the error can be detected c. Introduce an error pattern 101110000000000 and see if the error can be detected