Get label of selected value from Select one choice

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Hi Team,

I have two BO in VBCS like below:

1. Country: Having name and the id field
2. State: Having name, countryid and id field. In this BO, countryid is the foreign key with Country BO id column. 

I'm using SDP to populate Country and State drop-down. On the webpage, when I select Country the State drop-down filters and shows the corresponding states.

My requirement is to get the labels for country and state as I need to send the names of the country and state to the backend API. Can we solve this please somehow?

Regards,

Ankur