#### Answer

The set of students are = {Ann, Jose, Ron, Grace}

#### Work Step by Step

From, the given Venn diagram,
the set of students who scored 90% or above Exam 1 and Exam 3 represents the region II.
The set of students who scored 90% or above Exam 2 and Exam 3 represents the region VI.
The set of students who scored 90% or above in Exam 1 and Exam 2 and Exam 3 represents the region V.
The set of students are = {Ann, Jose, Ron, Grace}.