(A) FALSE
(B) TRUE
Explanation
If you apply a filter to a view then the data from the time when the filter is applied will be affected. You cannot go back and apply a filter to your historical data. Only, the data after the filter is created will change and past historical data will remain intact.
Conclusion
This question is a part of the Google Analytics Individual Qualification. You can get all the answers with detailed explanation for this exam in our Google Analytics Individual Qualification Exam Answers page.