Correct option is (c) Dynamic programming approach is not used here
Easy explanation: When comparing two different matrices, a dynamic programming approach is used to find the path of residue positions with optimal scores. The dynamic programming is applied at two levels, one at a lower level in which all residue pairs between the proteins are compared and another at an upper level in which subsequently identified equivalent residue pairs are processed to refine the matching positions. An SSAP score is reported for structural similarity. A score above 70 indicates a good structural similarity.