Which of the Statements Below About the Use of Hand

Which of the statements below about the use of hand tools is TRUE?

A) Use your thumb to help guide the hacksaw blade until the cut is started
B) A slightly damaged,slotted screwdriver tip can be dressed using a hand file
C) Pull on an adjustable wrench so that the force bears against the movable jaw
D) Use a box-end wrench when there is insufficient access above a bolt