Question: Name an example of a general-purpose DBMS.

Is "A common example is an email system that performs many of the functions of a general-purpose DBMS such as the insertion and deletion of messages composed of various items of data or associating messages with a particular email address; but these functions are limited to what is required to handle email and don't provide the user with all of the functionality that would be available using a general-purpose DBMS." the correct answer?
Available choices:
a). yes;
b). no;
a).