Answer:
Functions with a boolean return type.
Explanation:
If the return type is boolean, the only possible values are true or false.
It should be advertisement. If not then it could be a search engine.
Answer:
You need to enter to the server restrictions panel (it depends on which server you are using). Just like you granted full permission to the other members in the managers group, you need to add Maria to the group, but restricting her access to read-only, so she would only be able to view the files without modifying or erasing them.
Explanation:
