Answer: Tertiary circular reactions
Explanation:
Circular reactions can be defined as the reproduction of an active behavior where it was discovered randomly in a repetitive way. They are said to be circular since they are always repeated in the same direction. In Akel's case, the sub-stage of the sensorimotor stages in which it is found is in the tertiary circular reactions since, at this stage, the child begins to experiment with new actions to see what happens instead of repeating simple patterns of behavior already learned. Here the child leaves repetitive behaviors aside and begins to discover new ones.
At this stage the child immerses himself in a greater exploration where he deepens the properties of the object he has, begins to show interest in what happens when he manipulates and exercises control over the object.