The correct option is that only one statement is correct: the Stability and Growth Pact (SGP) of the European Union indeed limits the levels of the budgetary deficit of the member countries to promote fiscal discipline. The other two statements are incorrect because the SGP does not mandate the sharing of infrastructure facilities or technologies among EU countries; instead, it primarily aims to ensure that member states maintain sound public finances and adhere to specific budgetary guidelines to foster economic stability within the EU. This demonstrates the SGP's focus on fiscal rules rather than collaborative infrastructure or technology sharing, an important concept in understanding EU governance and economic integration.