79.35歲男性因腹脹就醫,CBC檢驗結果為WBC 65.6×109/L、RBC 3.05×1012/L、Hb 9.1g/dL、PLT280×109/L,周邊血液抹片如圖,箭頭所指為下列何種細胞?(A)Blast (B)Promyelocyte (C)Basophil (D)Monocyte