You have an Azure subscription that contains a virtual network named VNet1. VNet1 contains the following subnets: • AzureFirewallSubnet • GatewaySubnet • Subnet...

You have an Azure subscription that contains a virtual network named VNet1. VNet1 contains the following subnets:
• AzureFirewallSubnet
• GatewaySubnet
• Subnet1
• Subnet2
• Subnet3
Subnet2 has a delegation to the Microsoft.Web/serverfarms service.
The subscription contains the resources shown in the following table.

You need to implement an Azure application gateway named AG1 that will be integrated with an Azure Web Application Firewall (WAF). AG1 will be used to publish VMSS1.
To which subnet should you connect AG1?

A. GatewaySubnet B. AzureFirewallSubnet C. Subnet2 D. Subnet1 E. Subnet3