Which of the following is NOT an example of constructive feedback?

Using a series of checkmarks, exclamation points, or question marks to note your feelings about each section.

Giving positive comments on clear, well$-$supported sections, and pointing out areas that could be strengthened.

Writing comments in the form of "I" statements; ie$.$ "I would like an example here."

Asking questions about the writing, such as$,$ "How can you link these two ideas?"