Which of the following expressions should be used to find the name and address of all students who study in the ‘Science’ department?

The relational schemas are:

Student(Sno, name, address, age)

Department(Dno, Dname, Snumber, building)

1
\(σ_{name, address}(∏_{Dname ='Science'}(Department ⋈_{Snumber = Sno} (Student))\)
2
\(∏_{name, address}(σ_{Dname ='Science'}(Department ⋈_{Snumber = Sno} (Student))\)
3
\(σ_{Dname ='Science'}(Department ⋈_{Snumber = Sno} (Student)\)
4
\(∏_{name, address, Science}(Department ⋈_{Snumber = Sno} (Student))\)

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