Which of the following describes crevice corrosion?

a.)One element is preferentially removed as a result ofcorrosion

b.)Corrosion resulting from the combined action of chemicalattack and mechanical abrasion or wear.

c.)Corrosion that results from a difference in concentration ofions or dissolved gases in the electrolyte.

d.)Oxidation and reduction reactions that occur randomly overthe surface.

e.)Localized corrosion that may be initiated at a surfacedefect.

f.)Two metals/alloys of different compositions are coupled whileexposed to an electrolyte.

g.)Corrosion that occurs preferentially along grainboundaries.

h.)Corrosion resulting from the combined action of an appliedtensile stress and a corrosive environment.