Regarding Modules

[Shubham Rai]

How many applications menus can an application have?

• A. 3, one for an application's user modules, one for an application's administrator modules, and one for the ServiceNow administrator's modules
• B. As many as the application design requires
• C. 2, one for an application's user modules and one for an application's administrator modules
• D. 1, which is used for all application modules

[achin_chawla]

Many custom menus

https://docs.servicenow.com/bundle/washingtondc-platform-user-interface/page/administer/navigation-a...

[Palanivel J]

hi @Shubham Rai  and All

B) As many as the application design requires ✔️

reference the below image,

[shreyavashi]

what you are highlighting are modules count under the application menu. @Palanivel J 
Technically, there can be multiple app menu, but for an application, one is created as best practice.