A company is planning on creating several policies in the Azure Policy service. These policies are all meant to achieve a particular goal. Which of the following could be used to organize these policies into one group?

Answer options:

A.Management Groups
B.Initiative Definition
C.Resource Groups
D.Subscriptions

Answer – B 
You can club the policy definitions into one Initiative Definition. 
The Microsoft documentation mentions the following 

Since this is clear from the documentation, all other options are incorrect 
For more information on Azure Policies, please visit the below URL 

https://docs.microsoft.com/en-us/azure/governance/policy/overview