As an AI language model, I cannot predict the outcome of a situation without knowing the specific circumstances and decisions made by the characters involved. However, in general, a person may consider various options when faced with difficult situations such as saving their comatose father. Some possible steps they might take could include:
1. Seeking medical advice and treatment: They could seek professional medical help to determine the cause of their father's condition and explore potential treatments or interventions to improve his chances of recovery.
2. Communicating with family members: They could discuss the situation with their family members, seeking their support and guidance in making the best decision for their father's well-being.
3. Considering financial resources: They could assess their financial situation and determine if there are any available resources or assistance that could be used to cover the cost of medical care and other expenses associated with their father's condition.
4. Evaluating ethical considerations: They could also consider the ethical implications of euthanizing their father, especially if there are no effective treatments available. They could weigh the potential benefits and drawbacks of each option and make a decision based on their values and beliefs.
Ultimately, the decision that a person makes will depend on their personal circumstances, beliefs, and values, as well as the available information and resources.