Web Development

I'm trying to interact with a select element, in order to find out which element is selected (at least as text). Searching I found solutions like:

getAllSelectedOptions()

But I couldn't make use of it or at least return some value with it.
I exported the select library (no success). I'm using selenium, if anyone knows how to solve this using it or some other library help me plis ;)

bundles.Add(new ScriptBundle("~/bundles/bootstrap").Include("~/Scripts/bootstrap.js"));

bundles.Add(new Bundle("~/bundles/bootstrap").Include("~/Scripts/bootstrap.js"));

[HttpPost]
public UserEntity Login(UserEntity user)
{
    return Repository.Login(user);
}

public UserEntity Login(UserEntity user)
{
    var results = new UserEntity();

    if (user.UserName.ToLower() == "admin" &&
        user.Password.ToLower() == "admin")
    {
        results.UserName = user.UserName;
        results.Password = user.Password;
        results.IsLoggedIn = true;
    }

    return results;
}

https://192.168.1.2:65001/api/Login/Login

{"UserName": "admin","Password": "admin"}

Error: write EPROTO 1432630488:error:100000f7:SSL routines:OPENSSL_internal:WRONG_VERSION_NUMBER:../../third_party/boringssl/src/ssl/tls_record.cc:242:

{
    "IsLoggedIn": true,
    "UserName": "admin",
    "Password": "admin",
    "Id": 0
}