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XRA means ACC XOR ACC this will load 0000 0000 in ACC

MVI B (F0)H will load (11110000) in B

Sub B will be (ACC-B )loaded in ACC so, 0000 0000    // ACC Content

                                                          -1111 0000      // B content

                                                      =  0001 0000 =(10) H  //ACC content after Sub B

So option D
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