Your company has an Azure Active Directory (Azure AD) subscription. You need to deploy five virtual machines (VMs) to your company's virtual network subnet. The...

Your company has an Azure Active Directory (Azure AD) subscription.
You need to deploy five virtual machines (VMs) to your company's virtual network subnet.
The VMs will each have both a public and private IP address. Inbound and outbound security rules for all of these virtual machines must be identical.
Which of the following is the least amount of security groups needed for this configuration?