A modified CRC procedure is commonly used in communications standards. It is defined as follows: X^16 D(X) + X^k L(X)/P(X) = Q + R(X)/P(X) FCS = L(X) + R(X) where L(X) = X^15 + X^14 + X^13 + ... + X + 1 and k is the number of bits being checked (address, control, and information fields). a. Describe in words the effect of this procedure. b. Explain the potential benefits. c. Show a shift register implementation for P(X) = X^16 + X^12 + X^5 + 1. A modified CRC procedure is commonly used in communications standards. It is defined as follows: X^16 D(X) + X^k L(X)/P(X) = Q + R(X)/P(X) FCS = L(X) + R(X) where L(X) = X^15 + X^14 + X^13 + ... + X + 1 and k is the number of bits being checked (address, control, and information fields). a. Describe in words the effect of this procedure. b. Explain the potential benefits. c. Show a shift register implementation for P(X) = X^16 + X^12 + X^5 + 1