7. 表 (一)為某電腦公司的進貨項目清單及統計,關於表格中 A ~ C 的數量,下列何者最正確?(A) A = 5; B = 4; C = 3(B) A = 4; B = 4; C = 4(C) A = 5; B = 3; C = 4(D) A = 4; B = 5; C = 3