In approximately 100 words, provide a brief explanation of each of the following terms which relate to cash flow estimation. Give one example for each term. Sunk cost Opportunity cost Strategic value In approximately 150 words, respond to the following questions by explaining the concepts as well as citing one strength and one weakness of each: Explain the concept of sensitivity analysis and indicate one strength and one weakness of this type of analysis. Explain the concept of scenario analysis and indicate one strength and one weakness of this type of analysis.