Final answer:
The fourth classic outcome from change, completing the list of disaster, lost investment, and the ideal, is the learning experience.
Step-by-step explanation:
The question asks about the four classic outcomes from change, specifically in the context of risks and ways to avoid them. The listed outcomes include: the disaster, the lost investment, the blank, and the ideal. The possible answers are a. Success, b. Innovation, c. Learning experience, and d. Incremental change. The correct answer to fill in the blank is c. Learning experience. The four outcomes of change can be considered disaster, lost investment, learning experience, and the ideal situation.