【名词&注释】
病毒感染(virus infection)、结肠癌(colon cancer)、输尿管结石(ureteral calculi)、胰腺癌(pancreatic cancer)、输尿管狭窄(ureteral stricture)、双输尿管(double ureter)、密切相关(closely related)、双肾积水(bilateral hydronephrosis)、输尿管畸形(anomaly of the ureter)、同时发生(simultaneity)
[单选题]与HBV病毒感染密切相关(closely related)的肿瘤是
A. 肾癌
B. 结肠癌
C. 肺癌
D. 原发性肝癌
E. 胰腺癌