B. From 10AM to 4PM are the most dangerous hours for exposure to the sun.
Answer:
A. Setting up an environment that’s familiar yet appropriately challenging
Explanation:
J. McVicker Hunt proposed a concept known as "<em>problem of the match</em>" that illustrates the importance of the development of the mental functions in children. In this concept, a child forms higher abilities through learning activities that are not too simple but not too challenging. Therefore, the child is able to perform a task with only a little help.
In the <em>problem of the match</em>, the adult analyses and is able to adjust the level of challenge of the previously-mentioned task in order<u> to ensure that the child is learning and, at the same time, avoiding frustration by being too challening or overwhelming.</u>
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Therefore, this concept refers to <u>setting up an environment that's familiar yet appropriately challening.</u>
She needs to explain how she feels to him and it is a unhealthy relationship
