Among children who spend much time playing alone, what factors distinguish those who are likely to have adjustment difficulties from those who are well-adjusted and socially skilled?

The factors that should be consider as a problem of adjustment difficulties in children are:

- Playing alone, making repetitive movements that are not part of the functional playing.

- playing alone, next to peers without interaction.

- wondering around without an aim.

Explanation:

Children that spend much time playing alone are a cause of concern when other behavior such as: stereotypical movements, lack of eye contact with the  peers, wondering alone, staying next to peers without interacting with them.

If children spent much time alone without actual intrest in others, this would be a sign of an adjustment difficulty.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;