Click Submit to complete this assessment Question 4 of 4 Question 4 15 points I. Relational Algebra Use the following relational database schema to answer the queries using relational algebra. You may not use Cartesian products. Professor SSN ProfName Salary Nationality Teaches Prof SSN CrsCode Semester Course Crs Name Code Credit Hours . Each of the attribute is explained as follows: SSN: the unique ID of a professor ProfName: the name of a professor Nationality: the nationality of a professor (le, Emirati...) Semester. When the course taught (.e. Summer...) CrsName: the name of a course Code: the unique ID of a course Credit_Hours: the number of credit hours of a course. . . . Each of the attribute is explained as follows: SSN: the unique ID of a professor ProfName: the name of a professor Nationality: the nationality of a professor (i... Emirati...) Semester, when the course taught (ie. Summer...) CrsName: the name of a course Code: the unique ID of a course Credit_Hours: the number of credit hours of a course. . 2). Display a list of Emirati professor names and Salary who taught courses with 3 credit hours in the Summer Semester. Attach File Browse Local Files Browse Content Collection 4 Click Submit to complete this assessment Question 4 Save and Submit 10