You are using Azure Defender and Azure Sentinel to protect your cloud workloads and monitor your environment. 
You need to use the Kusto Query Language (KQL) to construct a query that identifies Azure Defender alerts. 
What query should you write to meet this requirements? To answer, complete the query by selecting the correct options from the drop down menus. 
_________________________

Answer options:

A.Azure Security Center
B.Security Alert
C.Azure Security Sentinel
D.Security Events

Correct Answer: B 
You should complete the query as follows: 
SecurityAlert 
This completes a basic query to identify all security alerts in Azure Security Center. Placing SecurityAlert first queries the SecurityAlert table, and then using | where ProductName =="Azure Security Center" afterwards ensures that in that SecurityAlert table you are only looking for entries where the ProductName column has a value of Azure Security Center.From here, you can expand. For example, you could use KQL to specify time frames or specific devices to query. Kusto Query Language (KQL) is the language you will use when building queries in Azure Sentinel. Queries serve as a way to search through the massive amount of data Azure Sentinel has access to. 
You should not begin the query with Azure Security Center. The structure of a query requires that you first identify the key table you will be querying. The SecurityAlert table includes the security alerts that are being digested by Azure Sentinel. You should first query this table, then narrow the search to the alerts coming from the Azure Security Center product. 
You should not begin the query with Azure Sentinel. Again, the structure of a query requires that you first identify the key table you will be querying. In this case, that would be the SecurityAlert table. More importantly, while Azure Sentinel is the solution aggregating this data and performing the query, it should not be used as the ProductName. This should be specified as the Azure Security Center. 
You should not end the query with Azure Sentinel. As mentioned in the paragraph above, the ProductName (solution source) for the SecurityAlert (alerts) table you should query is Azure Security Center. The query would be run in Azure Sentinel, but do not confuse the solution being queried with the one running the query. 
You should not end the query with SecurityAlert. Here you need to name the solution you want to query. In this case, that is Azure Security Center. SecurityAlert would not be a valid ProductName. 
Reference: 

https://docs.microsoft.com/en-us/azure/sentinel/connect-azure-security-center