A digital twin is a virtual $($digital$)$ representation of a real$-$world $($physical$)$ product or service. What is the role of a digital twin in the context of the loT?

To act as a backup for physical loT devices

To generate additional data for analysis in the loT

To serve as a virtual representation of a real$-$world product or service, allowing for problem detection and performance optimization

To secure the loT's wireless networks