Select the operations master role that is responsible for providing backward compatibility with windows nt servers configured as windows nt backup domain controllers or member servers.?

PDC emulator master.

Explanation:

The PDC or primary domain control emulator master is the primary domain control for windows NT and other pre-windows operating system like windows 2000, windows 98, windows 95. It help the windows NT4.0 to authenticate and process passwords, since it can inter-replicate passwords from other domain controls in an active directory. It is the first server used as a domain control in a domain and can only be allowed in one domain control at a time in an active directory.

the answer would be 2

since they are only saying that the couple has 20 daughters and so on but they never said that they went to the movies as well therefore the couple was the only people that went to the movies.

hope this ! : 3