Final answer:
The client's statement that supports the nurse's conclusion of diverticulitis is option 4. Consuming a large amount of fiber-rich foods can increase the risk of diverticulitis.
Step-by-step explanation:
The nurse concludes that the client has developed diverticulitis based on the client's left lower quadrant pain, cramping sensation, and the presence of guarding during abdominal examination. The statement that supports this conclusion is option 4, 'We have been growing green beans in our garden and I think I ate too many the other day.' Diverticulitis is a digestive disease characterized by inflammation and infection of the pouches (diverticula) in the wall of the large intestine. Consuming a large amount of fiber-rich foods, such as green beans, can increase the risk of diverticulitis.