Option A is the correct option to select in this case as the first priority of the nurse should be to help the patient to acknowledge and confront the problem. Conversion disorder can be linked to underlying psychological conflicts that may manifest as symptoms like blindness, and it is important to explore the emotional context of the patient's physical symptoms to understand the true nature of their condition and how best to support them through treatment. Additionally, there are also other interventions that may be useful in helping the patient to deal with their psychological issues and address the root cause of their blindness, such as psychotherapy and mindfulness techniques.