Question

Metallographic examination involves the
a) examination of a polished section cut from a metal artifact under a light microscope
b) examination of a polished section cut from a metal artifact under a petrographic microscope
c) examination of a polished part of a metal artifact, for abrasions and cracks, as well as annealing and soldering
d) the use of radar technology to search for metal objects under the ground
e) all of the above

Answer

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