A salesforce admin is trying to understand the way filter logic works in Salesforce? Which of the following statement is correct regarding it?

Answer options:

A.Filter Logic gives you the ability to apply a filter on multiple fields
B.AND/OR operators can be used to alter how data is being filtered
C.Filtering can be done through multiple objects
D.It gives you the ability to use a filter on multiple reports at once

Correct Answer: B 
AND/OR operators filter the way data is being shown. Where AND finds records that match both values OR finds records that match either value. 
Other options are incorrect because Filter logic isn`t available for all filters. For example, you can`t use them for roll-up summary fields. On reports, where object A may or may not have object B, you can`t use the OR condition to filter across multiple objects. For example, if you enter filter criteria where Account Name starts with M OR Contact First Name starts with M, an error message displays informing you that your filter criteria is incorrect. 
Reference: 

https://help.salesforce.com/articleView?id=filter_logic.htm&type=0