You have an Azure Active Directory (Azure AD) tenant named contoso.com. You need to configure diagnostic settings for contoso.com. The solution must meet the following requirements: ✑ Retain logs for two years. ✑ Query logs by using the Kusto query language. ✑ Minimize administrative effort. Where should you store the logs? 

Answer options:

A. an Azure event hub
B. an Azure Log Analytics workspace
C. an Azure Storage account

B