A large investment firm wants to decide on how to invest one million dollars. The board is considering three options: invest in stocks, invest in T-Bills, or do nothing. There are two possibilities for the market: favorable and unfavorable. The CEO has suggested conducting a market research that will cost the company $150,000 to see if the market is favorable or unfavorable. However, the board believes that there is no need for the study and they should consider the investment options without the research. Construct a decision tree for this problem.