The correct answer is A. Machine Learning.
Machine learning is a branch of artificial intelligence that allows software applications to become more accurate in predicting outcomes without being explicitly programmed to do so. Machine learning algorithms use historical data as input to predict new output values.
Cyber forensics is the application of computer science and investigative techniques to gather and analyze digital evidence. Cyber forensics is used to investigate computer crimes, such as hacking, identity theft, and fraud.
A full-stack developer is a software engineer who works on both the frontend and backend of a website or application. Full-stack developers are responsible for the entire development lifecycle, from design and implementation to testing and deployment.
Network design is the process of planning and implementing a network infrastructure. Network design includes the selection of network hardware and software, the configuration of network devices, and the development of network policies and procedures.
Machine learning is a branch of artificial intelligence that is most closely related to the question. Machine learning is used to develop software applications that can learn from data and improve their performance over time. This is in contrast to cyber forensics, which is a branch of computer science that is used to investigate computer crimes. Full-stack development and network design are both software engineering disciplines, but they are not closely related to artificial intelligence.