A company currently has the following resources defined as part of its Azure subscription. Windows Server 2019 container images that are stored in Azure Container Registry
A Log Analytics workspace
Azure virtual machines that run the latest version of Ubuntu
An Azure Key vault
For which of the following would you receive security vulnerability assessments? Choose two answers from the options given below.

Answer options:

A.Windows Server 2019 container images that are stored in Azure Container Registry
B.The Log Analytics workspace
C.Azure virtual machines that run the latest version of Ubuntu
D.The Azure Key vault
E.Azure Active Directory

Answer – C and D 

Option B is incorrect since there is no support in Azure Security Center for Log Analytics security monitoring. 
Option C is correct since "Azure virtual machine" has threat of vulnerability and is supported in Azure Security Center for Azure Active. 
Option D is correct since "Azure Key vault" has threat of vulnerability and is supported in Azure Security Center for Azure Active. 
For more information on the pricing aspects for Azure Security Center, you can refer to the below link- 

https://azure.microsoft.com/en-us/pricing/details/security-center/