(d) Statement-I: Graphs are often exploited for modelling the communication between robots in multi-robot systems. Statement-I is Correct. Graph theory provides a structured way to model communication links among robots in a network. Robots are represented as nodes, and communication channels as edges. Statement-II: Consensus problem is a wellknown and widely studied problem in the field of decentralized control of multi-robot systems. Statement-II in Correct. Consensus algorithms help multi-robot systems agree on a shared state or variable (e.g., heading, position) using only local interactions, a central topic in decentralized control. Statement-III : Rendezvous is the problem of controlling the robots in such a way that, based on locally available quantities, their positions converge to a common value. Statement-III is Correct. The rendezvous problem is indeed defined as the scenario where multiple agents/robots move to a common location using only local information, which is a specific form of the consensus problem.