ค้นหาสาขาวิชาเอกที่มีจำนวนนักศึกษามากที่สุด ไม่จำเป็นต้องใช้ตารางทั้งหมด
Find the major that is studied by the largest number of students.It is not neccessary to use all the tables.
 voting_record:  stuid [ number]  registration_date [ text]  election_cycle [ text]  president_vote [ number]  vice_president_vote [ number]  secretary_vote [ number]  treasurer_vote [ number]  class_president_vote [ number]  class_senator_vote [ number] 
SELECT major FROM student GROUP BY major ORDER BY COUNT(*) DESC LIMIT 1