The correct answer is C. Mirror.
When a person performs an action, the neurons which are activated and then sees another performs action are referred to as mirror neurons.
Mirror neurons are essential for imitation which is the known key for learning process. They are important because they help in planning our understanding and intentions which are behind actions.
They allow us to interpret an action. For example, it helps the cells in the brain to perform when a certain action is being performed.
Answer:
Scientists have linked that serveral personal problems risk factors to falling, including muscle weakness, problems with balance and gait, and blood pressure that drops too much when you get up from lying down or sitting