Pick all that apply

• 1Choice 1.

  lazy var formatter: () -> String = { [unowned self] in ... }: a lazy closure property that self owns

• 2Choice 2.

  URLSession.shared.dataTask(with:) { [unowned self] ... }: a network completion handler

• 3Choice 3.

  UIView.animate(withDuration:) { [unowned self] in self.alpha = 0 }: an animation during a screen transition

• 4Choice 4.

  items.forEach { [unowned self] in self.process($0) }: a non-escaping closure that runs synchronously right away

• 5Choice 5.

  Timer.scheduledTimer(withTimeInterval:repeats: true) { [unowned self] _ in ... }: invalidate is called in deinit