답안

const students = ['강은지', '김유정', '박현서', '최성훈', '홍유진', '박지호', '권윤일', '김채리', '한지호', '김진이', '김민호', '강채연'];

students.sort();

for (let key in students){
  console.log(`번호: ${parseInt(key, 10)+1}, 이름: ${students[key]}`);
}