Assertion. The database cursor and resultset have the same data yet they are different.

Reason. The database cursor is a control structure and the resultset is a logical set of records.

(a)

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

Explanation
The database cursor and result set both have data from the database but serve different purposes and are distinct entities. A database cursor is a special control structure that facilitates the row-by-row processing of records in the result set, i.e., the set of records retrieved as per the query. On the other hand, the result set refers to a logical set of records that are fetched from the database by executing an SQL query and made available to the application program.