Answer:
A user can perform the needed tasks quickly once he or she has learned the system.
Step-by-step explanation:
Usability goals is important as it helps the team for the development of the particular task. The every individual of the team member should know the importance usability goals.
The usability goals determine the speed, accuracy and the success rate of the task. All the possible steps are required to increase the chance of the success of the given task. The usability goals allows the individual to finish the task quickly.
Thus, the correct answer is option (B).