Which of the following is the region of highest dislocation density?

Which of the following is the region of highest dislocation density? Correct Answer Cell wall

Boundaries of any lattice are formed by an array of dislocations. The grain boundary is a region separating two different grains. In cell structure, the cellular structure is formed in heavy deformation (cold working) when dislocation accumulates and arrange themselves to create a region of the cell wall. It has very high dislocation density.
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