UITableView Checkbox ( Select a button when another button is pressed )

I have a button called btnChk2 . I want when the user press the btnChk2 that the button btnChk get selected. Here is my code what happens in my code is that when btnChk2 is pressed btnChk2 get selected and not btnChk.

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "CheckBoxCell")

    if let lbl = cell?.contentView.viewWithTag(1) as? UILabel {
        lbl.text = "item-\(1)"
    }

    if let btnChk = cell?.contentView.viewWithTag(2) as? UIButton {
        btnChk.addTarget(self, action: #selector(checkboxClicked(_ :)), for: .touchUpInside)
    }

    if let btnChk2 = cell?.contentView.viewWithTag(100) as? UIButton {
        btnChk2.addTarget(self, action: #selector(checkboxClicked(_ :)), for: .touchUpInside)
    }

    return cell!
}

@objc func checkboxClicked(_ sender: UIButton) {
    sender.isSelected = !sender.isSelected
}