Please all

3. Reduce the following expressions to the indicateu number of literals (total number of appearances of all variables, eg. AB+C' has 3 literals). A. X'Y' + XYZ + X'Y to 3 literals B. X+Y(Z + (X + Z)') to 2 literals CW'X(Z'+Y'Z) + X(W+W'YZ) to 1 literals D. ((A+B) + A'B')(C'D' + CD) + A'C' to 4 literals