Consider the query : SELECT student_name FROM students WHERE class_name=(SELECT class_name FROM students WHERE math_marks=100); what will be the output ?

• A. the list of names of students with 100 marks in mathematics
• B. the  names  of  all  students  of  all  classes  in  which  at  least  one  student  has 100 marks in mathematics
• C. the names of all students in all classes having 100 marks in mathematics
• D. the names and class of all students whose marks in mathematics is 100