how to make a quiz swift stack overflow

let quesInfoArr = [

    QuesInfo(question: "this is your first question",
             answers: [
                Answer(answer: "ansA", isSelected: false),
                Answer(answer: "ansB", isSelected: false),
                Answer(answer: "ansC", isSelected: false),
                Answer(answer: "ansD", isSelected: false)
        ]),
    QuesInfo(question: "this is your second question",
             answers: [
                Answer(answer: "ansA", isSelected: false),
                Answer(answer: "ansB", isSelected: false),
                Answer(answer: "ansC", isSelected: false),
                Answer(answer: "ansD", isSelected: false)
        ]),
    QuesInfo(question: "this is your third question",
             answers: [
                Answer(answer: "ansA", isSelected: false),
                Answer(answer: "ansB", isSelected: false),
                Answer(answer: "ansC", isSelected: false),
                Answer(answer: "ansD", isSelected: false)
        ]),
    QuesInfo(question: "this is your fourth question",
             answers: [
                Answer(answer: "ansA", isSelected: false),
                Answer(answer: "ansB", isSelected: false),
                Answer(answer: "ansC", isSelected: false),
                Answer(answer: "ansD", isSelected: false)
        ])

]