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

COUNSELOR(Counsellor_id, Name, Office_address, Phone, Email)

COUNSELLS (Counsellor_id, Reg_no, C_date)

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

Find out the best evaluation plan for the following query using heuristic optimization, showing the initial query tree, intermediate query trees and the optimal query tree.

Display counsellor name, student name and last counselling date (C_date) for students belonging to B.Tech. (CSE), who received counselling after January 31, 2019 from counsellor whose office is in SJT building. pls answer within 90 mins