The correct answer is C. Agent.
An agent is a software entity that can perceive its environment and take actions that affect that environment. In artificial intelligence, agents are often used to model real-world systems, such as robots, autonomous vehicles, and online shopping bots.
The task environment is the set of all possible states and actions that an agent can take. The goal of an agent is to find a sequence of actions that will lead it from its current state to a goal state.
The problem is the specification of the task environment, including the initial state, the goal state, and the set of possible actions. The solution is a sequence of actions that leads the agent from the initial state to the goal state.
The observation is the information that the agent receives from the environment. This information can be used to update the agent’s beliefs about the state of the environment.
In summary, the action of task environment in artificial intelligence is the agent. The agent is a software entity that can perceive its environment and take actions that affect that environment. The task environment is the set of all possible states and actions that an agent can take. The goal of an agent is to find a sequence of actions that will lead it from its current state to a goal state. The problem is the specification of the task environment, including the initial state, the goal state, and the set of possible actions. The solution is a sequence of actions that leads the agent from the initial state to the goal state. The observation is the information that the agent receives from the environment. This information can be used to update the agent’s beliefs about the state of the environment.