Space programs have recently suffered several setbacks with respect to their large projects, and much money has been lost. Consequently, these grand projects should be abandoned in favor of several small ones. Which one of the following, if true, provides the most support for the reasoning above? ['Large projects are intrinsically more likely to fail and so are more financially risky than small projects.', 'It is just as easy to revise, and even scrap, small projects as it is large ones.', 'Large space projects can explore a few places thoroughly, while small projects can investigate more regions, though less thoroughly.', 'The cost of starting a space project increases every year.']