To achieve a vehicle capable of driving itself, some basic interdependent functions are required. Which of the following would be one of these functions?

Question $23$ options:

Monitoring the vehicle movements $($Motion planning$)$

Route planning $($Navigation$)$

Monitoring the environment through which the vehicle travels $($Situational analysis$)$

Managing the execution of pre$-$planned changes in vehicle speed and direction $($Trajectory control$)$

All of these options would be basic interdependent functions.