Consider the following relational database schema relating to counselling of students. The primary keys are underlined. The foreign keys are self-explanatory.

COUNSELLOR(Counselor_id, Name, Office_address, Phone, Email)

COUNSELLS (Counselor_id, Reg_no, C_date)

STUDENT(Reg_no, Name, Email, Mobile, Branch)

Translate each of the following statements into an expression of relational algebra. C_date is the last counselling date.

(i) Display counsellor name and the name of students belonging to B.Tech. (IT) who received counselling from them.

(ii) Display the name of the counsellors who counselled more than ten students. ]

(iii) Display name of students who have taken counselling from every counsellor.

(iv) Display name of students and their mobile number and the date when they took counselling from counsellor named Aaron Stuart

pls answr soon