42.如圖mammogram所示，下列敘述何者錯誤？ (A)圖(a)是coarse calcification，診斷BI-RADS category 2 (B)圖(b)看到linear microcalcifications，診斷是BI-RADS category 4 (C)圖(a)在超音波若看不到，即可不必安排mammography-guided biopsy (D)圖(b)在超音波若看不到，即可不必安排mammography-guided biopsy