Help in binded angular page object selection and verification

hi folks,
i has a drop down menu, which is not a list
it’s binded by angular to get data from database via API then display when clicked
thus data is hidden even the divs has it also hidden and only appears in run time when selected
thus divs has randomly generated id by a library but now it’s a static id
how can i select item from this drop down

this screen shot for the drop down items when opened
this screen shot for the drop down items when closed

waiting for your help
i tried changing view, changing attribute, focus, click and few other tricks and tweaks

Capture.JPG

Capture 2.JPG