the development team has created a new employee application to allow the 35,000 staff members to communicate via video, chat rooms, and microblogs from anywhere in the world. The application was tested by a small user group, and the code reviews were completed. Which of the following is the best next step the development team should take?

1. Run the application through a web-application vulnerability scanner

2. Complete an additional round of code reviews to maintain project integrity

3. Stress test the application to ensure its ability to support the employee population

4. Isolate the application servers on premise to protect the communication methods.