Which two of the following statements about measure groups are true?

You work as a developer at ABC.com. The company uses a Microsoft SQL Server 2012
infrastructure.
An Analysis Services cube you are developing contains multiple dimensions. The cube also
contains linked measure groups and local measure groups.
Which two of the following statements about measure groups are true?

A.
Writeback is not supported in linked measure groups.

B.
Writeback is not supported in local measure groups.