Based on the situation described in the question, the IoT technology that the company should choose to ensure the highest degree of security is "<u>Azure Sphere."</u>
This is because Azure Sphere is the operating system that Microsoft designs to ensure the dealers of Internet of Things devices increase their security by incorporating a specific system on a chip.
Azure Sphere is known for its protection, high-level application functionalities, and well built-in communication and security traits for internet-connected devices.
Hence, in this case, it is concluded that the correct answer is "<u>Azure Sphere</u>."
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