Explanation
According to the ServiceNow documentation1, the it_pps_admin role is the minimum role that has access to the Project Administration > Settings > Preferences-Project module. This role can configure the project preferences, such as the default project template, the default project currency, and the default project status.
The other options are incorrect because:
A: it_program_manager: The it_program_manager role can create and manage programs, but not project preferences2.
B: sys_admin: The sys_admin role can access all modules and features on the platform, but it is not the minimum role required for the Project Administration > Settings > Preferences-Project module3.
C: it_project_manager: The it_project_manager role can create and manage projects, but not project preferences4.
1:
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-management/refer
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-portfolio-managem
https://docs.servicenow.com/bundle/vancouver-platform-administration/page/administer/users-and-groups/conce
https://docs.servicenow.com/bundle/vancouver-it-business-management/page/product/project-management/conc