Correct Answer: B, ETo assure the security and compliance of an application before publishing, the two most important types of testing are vulnerability testing and penetration testing. Vulnerability testing is essential for identifying and addressing any security vulnerabilities within the application, ensuring it is secure against known threats and meets security standards. Penetration testing involves simulating attacks on the application to identify potential security weaknesses, providing a comprehensive assessment of the application's security posture and helping ensure compliance with security standards.