Drop down menu value not getting assigned

Background
Site has a user specific actions collection. When a user logs in and selects a group, relevant actions are assigned to the dropdown menu of actions. When a user clicks a specific action from this dropdown, details get populated.

Problem
Text and date fields are getting populated, but dropdown driven fields are not getting the data. Here are the two screenshots, first of blank menu and second of a selected action with dropdowns not populated circled red

Reference Code

wixData.query("E4_ACTIONS")
 .eq('_id',$w("#ActionsDropdown").value)
 .find()
 .then((FoundAct)=>{
let item_act=FoundAct.items[0]
console.log("265 Selected Action is ",item_act._id," and Actions Dropdown is",$w("#ActionsDropdown").value," also Behavior is ",item_act.behavior)                                  
                                        $w("#ActionDescription").value=item_act.action
                                        $w("#ActionComments").value=item_act.comments
                                        $w("#ActionStatus").value=item_act.status
                                        $w("#ActionDueDate").value=item_act.dueDate
                                        $w("#ActionBehavior").value=item_act.behavior
                                        console.log("274 Action Behavior value is ",$w("#ActionBehavior").value)
                                        })

Where am I making an error?

Please take a look here how to populate a DropDown…
https://www.wix.com/velo/reference/$w/dropdown/options

Thanks @russian-dima , I am able to populate the options programmatically (e.g. in the first dropdown for actions), but in these two particular instances (status and behaviors), not able to assign specific value to be displayed.