Which of following sataements are correct? Path planning requires a map of the environment along with start and goal states as input. Path planning, along with perception (or vision) and control systems, comprise the three main building blocks of autonomous navigation for any robot or vehicle. The visibility graph aproach can find an optimal path for a robot. Dijkstra's Algorithm can plan a path for a grid map only. The grid-based search path-planning algorithms create a searchable tree by randomly sampling new nodes or robot configurations in a state space