4. Assume that Parker LLC has sued Jackson Development Inc. Parker has sent Jackson a set of Requests for Admissions, listing 20 separate items that Parker is asking Jackson to admit. Request Number 20 states, "Request Number 20 requests you to admit that the photograph attached hereto is a fair reproduction of the southwest corner of Elm Street and Baker Street in Los Angeles, California." What is the effect if Jackson forgets to respond to Request Number 20