Which deployment adds a Security Gateway to an existing environment without changing IP routing?

The answer is B because bridge mode deployment adds a Security Gateway to an existing environment without changing IP routing. Bridge mode is a transparent mode that does not require assigning IP addresses to the Security Gateway interfaces. Distributed deployment is a deployment where the Security Management Server and the Security Gateway are installed on separate machines. Remote deployment is a deployment where the Security Gateway is installed on a remote site and connects to the Security Management Server over a VPN tunnel. Standalone deployment is a deployment where the Security Management Server and the Security Gateway are installed on the same machine.References: [Check Point R81 Bridge Mode], [Check Point R81 Deployment Scenarios]