Toss Up - Physics - Multiple Choice

Which of the following is NOT true regarding quantum mechanics?
W) Bose-Einstein and Fermi-Dirac statistics are mutually exclusive
X) Fermionic degeneracy is a physical manifestation of Heisenberg’s uncertainty principle
Y) Quantum spin magnitude is a variable consisting of a finite distribution of half-integer multiples.
Z) The Pauli exclusion principle is the fundamental basis of physical and analytical chemistry