You added a text box instead of a dropdown – if you want to select an enumeration, you'll have to use a dropdown or radio buttons for instance.
I have a different idea for sire it will works please follow the bellow :
1- from the entity that you wont to appear the tow drop down create association with division and business * to 1
2-change the association between the division and business to be 1 division have multiple business
3- create over view pages for the division and business and at the business you must have reference selector tp select the related division
4- at your page where that you want to add the tow drop down add tow reference selector widget one for the division and one for the business .
5- at the business dropdown double click the bellow will appears navigate selectable object and choose Xpath
6-then at the bottom you can see constrained by click edit and you will see your path select then click okay
7- then run and test .