How to know the factory option of the ADP5301

According to datasheeet of ADP5301,I know there are two factory options of ADP5301, but when I want to purchase it, I can't find any information about factory option, how should I choose? 

What are factory options of ADP5301ACBZ-1-R7, ADP5301ACBZ-2-R7 and ADP5301ACBZ-3-R7?