You need to design the data access strategy

A group of report writers develop reports. The report writers currently use Report Builder 1.0
and report models. The report writers are not trained on SQL Server query writing. Their
report assignments come from various departments within the organization.
The company is upgrading to SQL Server 2012 with SQL Server Reporting Services (SSRS)
in native mode. After the upgrade, reports will retrieve data from a large new data
warehouse that will reside on an instance of the SQL Server 2012 Database Engine.
Reports for each department will retrieve data from only a subset of the data warehouse
tables.
You are designing the data access strategy. You have the following requirements:
Ensure that report writers can create only reports that display data which they have
database permissions to view.
Minimize the effort required to update connection strings for all reports developed by the
report writers.
Minimize the number of fields visible in a specific report for report writers who work for
multiple departments.
You need to design the data access strategy.
What should you do? (More than one answer choice may achieve the goal. Select the BEST
answer.)

A.
Create report models by using SQL Server Data Tools (SSDT). Include data sources and
data source views for each department’s data requirements. Configure each data source to
use integrated security.

B.
Create one shared data source that uses integrated security. Create an embedded
dataset for each report.

C.
Create one shared data source that uses integrated security. Create one shared dataset
that includes all tables required by the report writers.

D.
Create one shared data source that uses integrated security. Create a shared dataset for
each department’s data requirements.