Hello, could you please solve the answers in this attachment?

After this semester, I've considering owning my own business. Id__9[1'___t_ know which kind to attempt. I have a friend who owned a bar before, so I may ask him to be a partner and he may accept. I must make my decision(s) and get a partner before knowing what future demand would be. The decision table below shows my what my potential payoffs are. Decision Alternatives High Don't own a business 0 Own a pizza place myself $-200,000 $150,000 $500,000 Own a bar by myself $-450,000 $100,000 $900,000 Own a bar with a partner $-250,000 $50,000 $600,000 Demand Probability 40% 35% 25% Probability of getting a partner for the bar, _a__s_u_m_i_ng__t__l1_a__t_ I decide to try to get one: 50% Part A: If we know nothing about the probabilities of three states of nature, and assuming my potential partner would refuse, what is the recommended decision using the (A1) optimistic, (A2) conservative, and (A3) minimax regret approaches? Part B: Construct a decision tree for this problem. Professor @5535; hint: there is more than one way to construct a valid decision tree. I only need to see one version from you. Part C: OnthebaSIsof expected value, what should I do