Final answer:
The nurse should emphasize the importance of providing emotional support for the family.
Step-by-step explanation:
The correct statement for the nurse to make in this situation is: a. It is important that you provide emotional support for your family at this time.
The father expressing that he cannot cope anymore and wants to move out of the house indicates that he may be feeling overwhelmed and in need of support. By affirming the importance of emotional support for the family, the nurse can encourage the father to prioritize his role in providing support during this challenging time. This statement validates the father's feelings and emphasizes the importance of his emotional presence for both his child and the rest of the family.