Which of the following describes the line pull for lifting 4000 lbs with a four-part line block and tackle featuring roller bearing sheaves?

• A. 4000 lbs load with four-part line block and tackle with roller bearing sheaves (1129 lbs)
• B. 4000 lbs load with four-part line block and tackle with bronze brushed sheaves (1220 lbs)
• C. 6200 lbs load with four-part line block and tackle with roller bearing sheaves (1751 lbs)
• D. 7250 lbs load with four-part line block and tackle with bronze brushed sheaves (2210 lbs)

Answer: (A)