Displaying display names for values from backend [closed]

I have following questionThere are 2 apps - backend (asp.net core) and frontend (react) . Frontend app gets some data via REST API (for example currency rates) values from backend (as collection) and need to display in table. Where is the correct place to store display names

1. Return them with response from backend
2. Store them in config of frontend app and add them when displaying ?

Thanks