Which of the following is used as a secured, high-level application platform with built-in communication and security features for internet-connected devices?

Answer options:

A.Azure Synapse
B.Azure Sphere
C.Azure Databricks
D.Azure HDInsight

Answer : B 
Azure Sphere is a secured, high-level application platform with built-in communication and security features for internet-connected devices
Option A is incorrect because this is used for hosting a data warehouse
Option C is incorrect because this is a data analytics platform
Option D is incorrect because this is an open-source analytics service
For more information on Azure Sphere, please visit the below URL 

https://docs.microsoft.com/en-us/azure-sphere/product-overview/what-is-azure-sphere