The primary goal of using the OSSTMM is to provide a scientific methodology for the accurate representation of operational security. The OSSTMM focuses on testing the operational security of physical locations, networks, and systems to ensure that the testing process is comprehensive and repeatable. This is important because it not only standardizes penetration testing across different environments but also ensures that the results are actionable and reliable. Option B is incorrect because, while risk management is a component of penetration testing, it is not the primary goal of the OSSTMM. Option C is incorrect because this methodology is not primarily about quantifying security spending. Option D is incorrect as its primary goal is not the generation of new security technologies.