Rick, In TDAmeritrade's web-site they still have kept the misleading options for INET and ARCA. However, it does not actually go to INET or ARCA as it was used to; it now goes to the auto-router. The decision has been made a while ago.
For direct routing on options and stocks go to Interactive Brokers.
They have the best execution statistics of any online broker for both stocks and options (http://www.interactivebrokers.com/en/p.php?f=smartRouting)
They are also the least expensive broker I know of for stocks, options, FX, and futures.
To open an account with them just click on this link and it only takes 5 minutes to fill out their newly redeveloped online app: