Levers are classified into three classes based on relative positionA. Effort, Load and ForceB. Force, distance and surface areaC. Effort, load and FulcrumD. Pivot, Effort and load 0 0 votesArticle Rating Subscribe LoginNotify of new follow-up commentsnew replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Oldest Newest Most Voted Inline FeedbacksView all comments