Answer:
D. his effectiveness in drawing charts.
Explanation:
Walter Dean Myers' "Into the Unknown," tells the story of James Cook and how he became an important asset for England and her territorial expansion. The short story narrates the growth of Cook and how he got involved in cartography and expeditions.
Lines 46 through 53 talk about the increased popularity of James Cook whose <em>"calculations were so well done, and so well thought out, that his reputation grew quickly." </em>He also successfully drew the chart of the Canadian border, later on, the astronomy of Venus.
Thus, the correct answer is option D.
