The correct option is D
A clipper is a sailboat appeared in the nineteenth century, elongated and narrow, with three or more masts, and characterized by its high speed. The name clíper comes from the English noun «clip», informal word that denoted at the time «speed». The expression "at a good clip" is used to refer to something that happens quickly. The clipers were the swan song of sailing due to the harassment of mechanically propelled ships.