Multiple choice softskills leadership ambidextrous core or marrow formidable capable of using either hand with equal ease sediment deposited by running water (at the entrance to a harbor or by a bend in a river) Reveal answer Fill a bubble to check yourself C Correct answer Explanation Ambidextrous means able to use both hands with equal skill. 'Core or marrow' refers to the center, 'formidable' means impressive or intimidating, and sediment deposited by water is 'alluvium'.