A cloud administrator is deploying a set of virtual machine instances using an Infrastructure as Code (IaC) template. The instances are being created, but they are not configured with the necessary network security group which should allow inbound traffic on port 80 and 443. Upon inspecting the template, the administrator needs to identify the issue that is causing the network security group to not be associated properly. What should the administrator look for in the IaC template to resolve this issue?
Network security group configured for only outbound rules.
A missing reference to the network security group in the virtual machine configuration section of the template.
Syntax errors in the template that prevent execution.
The number of instances exceeds the template limit.