Given the logic function: F = (x+y+z’).(w+x’+y’)
a. One possible minimal SOP expression is F=y′⋅z′+w⋅x+x⋅y′+x′⋅y
b. One possible minimal SOP expression is F=x′⋅z′+w⋅x+x⋅y′+x′.y
c. One possible minimal SOP expression is F=x′z′+w⋅y+x⋅y,+x′⋅y
d. All of the above.