To gain access to a nut or bolt in an area that is hard to reach, you should use what type of wrench?

Correct Answer: Option D — Crowfoot

Crowfoot wrenches are specifically designed for use with a socket wrench handle to reach fasteners in confined or obstructed spaces where standard wrenches cannot fit. They are essential for maintenance on complex gas turbine assemblies where clearance is limited and direct access to bolt heads is restricted.