4. (10pts) Come up with set expressions that match the following Venn Diagrams, where set regions are highlighted with lime. You can use Wolfram Alpha to verify your answer. Important: You need to simplify your answer. For example, the following solution to (a): (An BnC)u(AnBnC)u(AnBnC)u(AnBnC), despite being correct, will receive 0 points. (a) (b) A A A с B B B

Fig: 1