gistfile1.txt

    // Create card
    var card = new AdaptiveCard(new AdaptiveSchemaVersion(1, 0))
    {
        // Use LINQ to turn the choices into submit actions
        Actions = choices.Select(choice => new AdaptiveSubmitAction
        {
            Title = choice,
            Data = choice,  // This will be a string
        }).ToList<AdaptiveAction>(),
    };