设数据库中已有教材中的Student(Sno,Sname,Ssex,Sage,Sdept)、Course(Cno,Cname,Credit,Semster)和SC(Sno,Cno,Grade)表。现要查询学生选的第2学期开设课程的情况，只需列出学号、姓名、所在系和所选的课程号。该查询涉及到的表是（）。

【单选题】【消耗次数：1】

① 仅Student表

② 仅Student和SC表

③ 仅Student和Course表

④ Student、SC和Course表

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