Find the names of all the students enrolled in course EE401. Write an relational algebra expression that for each student the title of the courses he/she has received an A grade in. Return this information as tuples (name,title) where title and name represent the course title and student name, respectively.

Consider the following database schema and example instance: Course Student title Databases dept credits cid CS425 name dept sid 001 Alice CS 002 Bob EE 003 Carol CS 004 David PHYS CS CS595 Database Security CS EE VLSI Design EE 3 591 Microcomputers EE401 4 PHYS571 Radiation Physics PHYS 3 Enroll sid grade gradepoint cid CS425001A CS595 001B CS595 002A EE401 001 A EE401 002 B EE401 004 A 4.0 3.0 4.0 4.0 3.0 4.0 2.0 4.0 Prereq cid pi CS595 CS425 EE591 EE401 PHYS571 002 C PHYS571 004A Hints: Attributes shown with grey background form the primary key of a relation