我是Swift和Coding的新手。我的英语不是很好，所以提前道歉！我想开发一个Quiz App。现在我在检查正确答案时遇到了一些麻烦，因为我的uibuttons可以被选择。原因是我想有多个答案，多个选择和多个正确答案。
我不知道什么样的我的代码Informationen你需要从我这里，但我会张贴我的意思是它可以帮助.
非常感谢您提前为您的帮助！！！
班级

import Foundation

class Quiz {
    
    let question: String
    let options : [String]
    let correctAnswer: [String]
    
    init(question: String, options: [String], correctAnswer: [String]) {
        self.question = question
        self.options = options
        self.correctAnswer = correctAnswer
    }
    
    func validateOption(_ index: Int) -> Bool {
        
        let answer = options[index]
        return answer == correctAnswer[index]
        
    }
    
    deinit {
        
    }
    }

我的Viewcontroller

import UIKit

class ViewController: UIViewController {
   
    @IBOutlet weak var quenstionLabel: UILabel!
    @IBOutlet var answerButton: [UIButton]!
    
    let quizManager = QuizManager()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        getNewQuiz()
        
    }
    
    @IBAction func checkAnswerButtonTapped(_ sender: UIButton) {
        
    }
    
   
    
    @IBAction func checkMarkAnswerClicked(_ sender: UIButton) {
       
        if sender.isSelected {
            sender.isSelected = false
            
        } else {
            sender.isSelected = true
        }
    }

还有我的测验管理员

import Foundation

class QuizManager {
    
    private var quiz: Quiz!
    private var _totalAnswers = 0
    private var _totalCorrectAnswers = 0
    
    var question: String {
        return quiz.question
    }
    
    var options: [String] {
        return quiz.options
    }
    
    var totalAnswers: Int {
        return _totalAnswers
    }
    var totalCorrectAnswers: Int {
        return _totalCorrectAnswers
    }
    
    func refreshQuiz(){
        let randomIndex = Int(arc4random_uniform(UInt32(quizes.count)))
        let quizData = quizes[randomIndex]
        quiz = Quiz(question: quizData.question, options: quizData.options, correctAnswer: quizData.correctAnswer)
    }
    
    func validateAnswer(index: Int){
        _totalAnswers += 1
        if quiz.validateOption(index){
            _totalCorrectAnswers += 1
        }
    }

如果有需要更多的信息，请让我知道！！
如果有人能帮我就太好了。