10.下列何者是B細胞慢性淋巴性白血病(chronic lymphocytic leukemia)細胞的特徵，可與反應性淋巴細胞過多症做鑑別診斷？(1) Monoclonal light chain restriction；(2) CD5 expression；(3) CD10 expression
(A)(1)
(B)(1)+(2)
(C)(1)+(3)
(D)(2)+(3)
(E)(1)+(2)+(3)