i. Using Relational Algebraic expressions, show how a Natural Join can be performed on the two Relations Student and Performance shown in Table 4.2 and Table 4.3. In your answer ensure you show all intermediate steps using appropriate relational algebraic operators and 1st predicate logic expressions. ii. Given Tables 4.2&4.3 below, write an SQL query to return a list of students whose GPA is over 2.0. The query results should display the student number and student performance only. Table 4.2 Table 4.3