Here closures are very useful try this in your code if you are stuck on the first challenge, this is the code only for the delete option

Declare a constant which will hold the main alert which is represent the actionSheet basically like "let actionSheet = UIAlertController(title: "Options".capitalized, message: nil, preferredStyle: .actionSheet)" make sure u are still in didSeletitemAt method and after start adding those buttons to the actionSheet you just declared above "actionSheet.addAction(renameOption)" something like this. I got stuck on this as well and gathered some info from here and there and put it together. Another version of this would be to wrap all this alert into a maine alert, which works fine as well.

    // this is the delete option
    let deleteAction = UIAlertAction(title: "Delete", style: .destructive) { _ in

        let deleteAlert = UIAlertController(title: "Delete", message: "Do you want to delete this person?", preferredStyle: .alert)
        deleteAlert.addAction(UIAlertAction(title: "Cancel", style: .cancel))
        deleteAlert.addAction(UIAlertAction(title: "Delete", style: .destructive, handler: { _ in
            self.people.remove(at: indexPath.item)
            self.collectionView.reloadData()

        }))

        self.present(deleteAlert, animated: true)