Scientific knowledge has its dangers, but so has every great thing. Over and beyond the dangers with which it threatens the present, it opens up as nothing else can, the vision of a possible happy world; a world without poverty, without war, with little illness. Science, whatever unpleasant consequences it may have by the way, is in its very nature a liberator. Which one of the following is the most important implication of the passage?

According to the passage, science is essential but not adequate on its own to ensure a happy world. Option (c) correctly asserts that a happy world is not achievable without science. Option (a) is incorrect because while science may contribute to envisioning a potential happy world, it does not guarantee its realization. Option (b) is inaccurate as it suggests that only science has the capability to lead to a happy world. Option (d) is also incorrect as it implies that a happy world can be achieved regardless of the presence of science, which is not supported by the passage.