(a) The K+ meson is a bound state of us. The PDG website gives the spin and parity of this meson as J P = 0. (a) Justify the spin and parity in terms of the S and L values of the K+ state and partity properties of quarks. (b) The meson is an S = 0, L = 0 bound state of du. What would be the spin and partity of the resulting meson if the quark spins were parallel? (c) What would be the spin and parity of the du pair if S = 0 but L = 1? (d) Write down the spectroscopic notation names for all four particles in parts (a)-(c).