Which statement about trade in the ghana empire is correct? a. ghanaian blacksmiths produced high-quality trade goods from iron. b. silk was so valuable in ghana that it was worth its weight in gold. c. ghanaian traders were known for their loud, boisterous bartering techniques. d. copper and fine linen were the two main items traded in ghana. this one i'm not sure of. : (

Ahistorian has discovered a letter written by an early roman emperor. she translates the letter and discovers that it contains orders to a general before a battle. she works to determine when the letter was written to figure out which battle the letter references.the historian in the passage is most clearly demonstrating which historical thinking skill? a. identifying causes and historical contextb. thinking chronologicallyc. making and evaluating arguments and interpretationsd. analyzing historical sources