7198. The father advised his errant son not to maunder about but do something worthwhile.

✅ The correct answer is option B.
Trouble : difficulty or problems.

Wander : walk or move in a leisurely or aimless way.

Run : move at a speed faster than a walk, never having both or all the feet on the ground at the same time.

Play : engage in activity for enjoyment and recreation rather than a serious or practical purpose.

Maunder : move or act in a dreamy or idle manner.

Synonym of Maunder is Wander