Answer:
c. Scaffolding
Step-by-step explanation:
According to Vygotsky's theory, scaffolding consists of the activities provided by the adult or more competent peer, to support the child to solve a task or achieve a goal that would be beyond his/her reach without the help of this adult or peer.
Therefore, thanks to scaffolding, the child can focuses on the parts of the task that he/she knows how to do while getting help from the adult or peer and as time goes by and keeps improving, the help is removed and the child can complete the task by his/her own.
In this example, Yvonne is putting a puzzle together with her father. At first he helps her suggesting where some pieces might go but as she improves, he offers less advice and instruction and Yvonne has more responsibility on completing the puzzle. We can see that her father is providing help so she can complete the task but as she improves, this help is removed and she can complete the task by herself. Therefore this is an example of scaffolding.