$2\mathrm{.}24.$ Derive the truth table for the following Boolean functions.

a$)F(w,x,y,z)=[(xo.y{)}^{\text{'}}+(xyz{)}^{\text{'}}](w^{\text{'}}+x+z)$

b$)F(x,y,z)=xo+yo+z$

c$)F(w,x,y,z)=[w^{\text{'}}x{y}^{\text{'}}z+w^{\text{'}}z(yo+x){]}^{\text{'}}$