Question 3. Given the function f(a, b, c, d), the output f = 1 when the number of inputs equal to '1' is more than or eq

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Question 3. Given the function f(a, b, c, d), the output f = 1when the number of inputs equal to '1' is more than or equal to thenumber of inputs equal to '0'.a) Use the Quine-McCluskey method to find the minimal expressionSOP of fb) Express f as Reduced Ordered BDD (ROBDD) with the order: x1, x3,x2, x4