在ScienceDirect数据库中，检索标题中含有 " wastewater treatment"（词组） 和 "artificial intelligence"（词组）的文献，正确的书写方法是（字段在界面上选择）
选项：

A:" wastewater treatment " or "artificial intelligence";
B:" wastewater treatment " and "artificial intelligence";
C:wastewater treatment or artificial intelligence;
D:wastewater treatment and artificial intelligence