An optimal play through would result in all three choices being available but players may have only two options or no choice at all, depending on their previous actions.

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The dilemma is that you only truly have a choice of two.

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Yet the single mother of two says she feels like the train is her only choice, so she tries to minimize the risk.

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So, were the only two big satellite firms to merge, this would leave most Americans with a choice of one cable and one satellite operator.

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In this last example, control can be handled by only one device, the iPhone, but in the previous two, the user has a choice of smartphone platforms as well as browsers.

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Australia were without half a dozen players themselves, including world-class talents behind the pack such as Matt Giteau and Stirling Mortlock, and their entire first-choice front row, with the new-look Wallaby front row having only two caps between them.

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They could be based anywhere, but as London is the only time zone where the business day overlaps with the other two, it is the location of choice for the new cadre of global money managers.

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