Answer:
Its simple! B The ball accelerates upward!♡♡
The time component is needed. The acceleration is the change of velocity divided by the time in when this change of velocity happens.
Acceleration = (change of speed) / (time for the change)
Change in speed = (22 - 4) = 18 m/s.
Time for the change = 3 sec.
Acceleration = 18/3 = 6 m/s per second.