PT. Corona is currently trying to determine the size of the computer system which will provide optimal cost consequences when using the leasing method. The results of each decision choice and acceptance of the business situation (high and low) are summarized in the following table. Alternative decisions Great leasing system Medium system leasing Small leasing system Situation: Reception High Low $ 300,000 - $ 15,000 $ 200,000 $ 20,000 $ 100,000 $ 60,000 The director of this company wants to know which decision is best based on several approaches, namely a) approach optimistic, b) approach conservative, c) approach minimax-regret. Help the Director find the