Re: Saranya Sriram's interview by blockchain.news

I am reading the article at https://blockchain.news/ => https://blockchain.news/news/microsoft-azure-cloud-solution-architect-lead-explains-the-keys-to-success-for-blockchain-developers about the interview of Azure Head Cloud Solution Architect

I have a follow-up question:

Sriram mentioned Azure is using Ethereum Private Blockchain, so is it the only way Azure is doing? any plan for public blockchain? Why choosing Ethereum for private blockchain but not others?