The correct answer is C) Six point sockets are less prone to slippage than twelve point sockets. The reason this is the correct answer is that six point sockets provide a tighter fit on the fastener, reducing the risk of the socket slipping and potentially damaging the fastener or causing injury. Twelve point sockets, on the other hand, have a looser fit and are more prone to slippage, especially when significant torque is applied. The other answer choices are incorrect because: A) Using a cheater bar to provide extra leverage can be dangerous and should be avoided; B) Pushing wrenches and drive tools is generally safer than pulling them; and D) Open-end wrenches are not recommended for initial breaking loose or final tightening of fasteners, as they provide less control and stability compared to sockets.