i only need help on question number 5

QUESTION 4 Greentrop Pharmaceutical Products are the world leader in the area of sleep aids. Its major product is "Dozealot". The Research- and-Development Division has defined two alternatives to improve the quality of the product, which are simple reformulations of the product to minimize the side effects and to improve the product efficacy. To conduct an analysis, management has decided to consider the possible demands for the drug under each alternative. The following payoff table shows the projected profit in millions of dollars. Demand Medium Low Decision Alternatives di dz High $525 $500 $875 $350 $300 $765 Construct a decision tree for this problem and attach the file. Attach File Browse My Computer Browse Content Collection QUESTION 5 Based on the Greentrop Pharmaceutical Products problem, answer the following: If the decision maker knows nothing about the probabilities of three states of nature, what is the recommended decision using the optimistic conservative and minimax regret approaches? Write your answers by selecting D1 or D2 and explain with one short sentence why you selected one or the other decision for each approach