Hi Wenjun,
Yes, this option is clear.
The question is exactly about non HCP hosted business applications. Unfortunately HCP does not offer building .Net based application hosted there. E.g. in case we have a lot experience and know hows in .Net environment and would like to stay as professionals there and with HANA being hosted in Azure it was a good fit for us. But now considering migrating to HCP poses us question if HCP is at all designed/suitable to be used externally with the same effectiveness. Currently it doesn't seem so to me. Of course there are means to connect to HCP from external network though vpn channel, but would one really consider building a complex performance critical business application outside HANA Cloud Platform?
Thanks
Artem