8. 一位40歲病人抱怨胃痛,內視鏡檢查發現胃竇(gastric antrum)有一腫瘤,病理切片檢查顯示為mucosa-associated lymphoid tissue lymphoma,CD20陽性及H. pylori陽性,分期檢查未發現其他異常。下列何者為此病人最適當的第一線治療?
(A) Eradication of H. pylori
(B) Rituximab
(C) Chemotherapy
(D) Rituximab + Chemotherapy
(E) Local irradiation