Sentence Completion - Section 2

Fill the gaps in the passages below with the most appropriate word from the options given for each gap. The right words are the ones used by the author. Be guided by the author's, overall style and meaning when you choose the answers.
Von Nuemann and Morgenstern assume a decision framework in which all options are thoroughly considered, each option being independent of others, with a numerical value derived for the utility of each possible outcome (these outcomes reflecting, in turn, all possible combinations of choices). The decision is then made to maximize the expected utility. (1) ----------, such a model reflects major simplifications of the way decisions are made in the real world. Humans are not able to process information as quickly and effectively as the model assumes; they tend not to think (2) ---------- as easily as the model calls for; they often deal with a particular option without really assessing its (3) ----------, and when they do assess alternatives, they may be extremely nebulous about their criteria of evaluation