kripke strucutre logically unsound

Consider the following rule p/p ^q, which logically unsound. Which Kripke structure below demonstrates the rule is unsound? W = {a, b, c}, /(p) = { }, /(q) = { } W = {a, b, c}, /(p) = { }, /(q) = {W} W = {a, b, c}, /(p) = {a, b}, /(q) = {a, b, c} W = {a, b, c}, /(p) = {a, b, c}, /(q) = {b, c}