5. Let X be a four-bit quantity with bits X3, X2, X1, and xo. 23 is the most significant bit (MSb). Let us define four Boolean functions as follows: A is true iff all the bits of X are the same. B is true iff X module 5 F1, when I's interpreted as an unsigned 4-bit integer. is true iff abs(8 x6, wheg * is intetpreted as a thit complement integer. D is true iff X, when interpreted as an unsigned 4-bit integer, is zero. and D. (a) Give a truth table that shows the values of A, (b) Give Boolean formulas for A, and D