Final answer:
The feature that allows assignment of permissions to create resources in Azure is Role-based access control (RBAC), not Initiatives, Policies or Resource Groups.
Step-by-step explanation:
The feature in Azure that allows you to assign permissions to users for the creation of resources is called Role-based access control (RBAC). RBAC is an authorization system built on Azure Resource Manager that provides fine-grained access management to Azure resources, allowing you to create roles with specific permissions and assign them to users, groups, or service principals. This system helps organizations ensure that their employees have only the access that they need.
Other options like Initiatives and Policies in Azure are primarily used for enforcing standards and assessing compliance of resources, while Resource Groups are containers that hold related resources for an Azure solution. However, assigning permissions lies within the realm of RBAC's functionality.