Final answer:
Citizens can contribute to a smart city through the category of Community IoT, which includes shared technologies for the public's benefit. Community IoT integrates into a network of sensors and systems that enhance urban living. Proper regulation and human capital investment are key in managing the effects of ICT innovations.
Step-by-step explanation:
The category that could be used by citizens to contribute to a smart city is C. Community IoT (Internet of Things). This category encompasses collectively shared and used technology applications that benefit the wider community. These could include sensors for monitoring air quality, traffic flow management systems, or public safety infrastructure that relies on the interconnectedness of devices. Community IoT allows citizens to engage with and contribute to the smart functionalities of their urban environment, often supported by local governments to enhance public services and community resources.
Also worth mentioning is the role of Information and Communication Technology (ICT) in driving innovation and economic change. According to Perez's research, these changes can be navigated through proper regulation and investment in human capital, ensuring that society benefits from the advantages of ICT while mitigating any negative impacts on employment.