在PubMed中检索肺癌的预防或治疗的相关文献,检索策略应为
A: Lung cancer AND Prevention AND therapy
B: Prevention OR therapy AND Lung cancer
C: Prevention AND therapy OR Lung cancer
D: Lung cancer AND Prevention OR therapy
A: Lung cancer AND Prevention AND therapy
B: Prevention OR therapy AND Lung cancer
C: Prevention AND therapy OR Lung cancer
D: Lung cancer AND Prevention OR therapy