Explanation
This answer is correct because a standalone deployment is a valid option for installing a Check Point Security Gateway and a Security Management Server on the same machine1. This option is suitable for small or medium-sized networks that do not require high availability or load balancing1.
The other answers are not correct because they are either invalid or irrelevant options for deployment. CloudSec deployment is not a valid option, but it might be confused with CloudGuard, which is a Check Point solution for securing cloud environments2. Disliked deployment is not a valid option, but it might be a typo for Distributed deployment, which is a valid option for installing a Check Point Security Gateway and a Security Management Server on separate machines1. Router only deployment is not a valid option, but it might be confused with Router mode, which is a configuration option for a Check Point Security Gateway that enables it to act as a router and forward packets between interfaces3.
* Gaia R81.20 Administration Guide
* CloudGuard Network Security
* Configuring Router Mode in Gaia Clish