Which of the following describes policies for secure application development?

The correct choice is B, the Open Web Application Security Project (OWASP). OWASP is an organization that focuses on improving the security of software. They provide a wealth of resources and policies specifically designed to enhance the security of application development. One of their most notable contributions is the OWASP Top Ten, which outlines the most critical security risks to web applications, making it a foundational element for secure development practices.

OWASP also offers a variety of guidelines, tools, and methodologies that help developers understand security vulnerabilities and mitigate them during the development process. By adhering to OWASP standards, organizations can foster a security-oriented mindset and build applications that are robust against common threats, ultimately leading to more secure software products.

While API management, requirements definition, and testing procedures are all relevant aspects of software development, they do not specifically encapsulate comprehensive policies for secure application development in the way that OWASP does. API management focuses primarily on the interaction and governance of APIs, requirements definition involves outlining functionalities and constraints for applications, and testing procedures are concerned with verifying and validating that the software meets its design specifications without necessarily addressing security vulnerabilities directly. Thus, these aspects can contribute to security but do not provide the structured policies that OWASP offers for secure application development.