Final answer:
The greatest tangible benefit of using IoT sensors is likely enhanced efficiency, as they allow for automation, real-time data analysis, and more responsive systems with less human intervention.
Step-by-step explanation:
The greatest tangible benefit likely to arise from replacing sensors so that they operate on the Internet of Things (IoT) is likely b) Enhanced efficiency. IoT devices are interconnected and can communicate with one another, enabling automation and real-time data analysis. This leads to systems that are more responsive and requires less human intervention, streamlining processes, and reducing the likelihood of errors.
For example, in a manufacturing scenario, IoT sensors can monitor machinery and predict when maintenance is required, thus preventing downtime. In a smart home, IoT sensors can adjust lighting and temperature based on occupancy and preferences, saving energy and enhancing the occupant's comfort. The interconnected nature of IoT devices also lends itself to reduced costs in the long term through improved resource management, although the initial setup might require a significant investment.