1. Decide between the four options A, B, C, D using the following decision-tree which provides payoffs and probabilities. The nodes with squares indicate you make a decision (using incoming values from its leaves assuming a rational decision is made) and the nodes with circles indicate you use expected value (of incoming values from its leaves) to calculate the value of the node. Remember that you always do computations from the "leaves to the root" (i.e., in this case from Right to Left).

35 1425 30 10 lo Root So Ec les 0 250 al 40 35 40 D decision node o expected -28 50 % 5o -22 -32 35 value