A major technology company plans to renovate its headquarters, emphasizing both physical and digital security. The head of the security department is looking to enhance the building's main entry points and contemplates integrating advanced gateways with innovative locking mechanisms. In relation to securing a major technology company's main entry points, which approaches will BEST harness the potential of gateways and locks to ensure optimal security? $($Select the two best options.$)$

A$.$ Employ network gateways that scrutinize incoming traffic for malicious activity

B$.$ Implement biometric locks that grant access based on unique physiological characteristics

C$.$ Use gateways to redirect all visitors to the company's promotional website

D$.$ Install traditional padlocks that require a standard key