Which of the following test results is most consistent with a diagnosis of multiple myeloma?

Question

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Multiple myeloma is characterized by an increased proliferation of plasma cells in the bone marrow, which can lead to increased levels of these cells in peripheral circulation. Low calcium levels (B) can also be seen in multiple myeloma due to bone destruction, but this is not specific to the disease. RBC aggregates on the peripheral blood smear (C) and blasts in the peripheral blood (D) are not typically seen in multiple myeloma.

Which of the Following Test Results Is Most Consistent with a Diagnosis