please just show the first, last name, and gpa.
SELECT stu_fname ,  stu_lname ,  stu_gpa FROM student WHERE stu_gpa  >  3 ORDER BY stu_dob DESC LIMIT 1
first name refers to stu_fname; last name refers to stu_lname; GPA refers to stu_gpa; students with GPA > 3 refers to stu_gpa > 3;