The first major Theory was The Expected Utility Theory, which indicates that individuals are likely to choose the decision that is the most valuable, but although this is true, this theory can account for unnecessary risk taking, which in turn can cause an unwanted outcome. The Prospect theory on the other hand accounts for certain biases within decision making however this does not take into account other aspects of decision making, such as the probability and other potential influences. The Social Functionalist Approach also shows that individuals are likely to feel pressured to make certain decisions, this may indicate that they are not making a decision based on what they believe, but rather what other people perceive as the correct decision. The Expected Utility Theory and Prospect Theory do show that although humans do appear to be rational decision makers in some sense, although this is not always the case, as there can be many things that can influence an individual’s decision, and due to this it is not possible to determine whether or not humans are indeed rational decision makers based entirely on…