다 해석하고도 내용이 이해가 안가서 순서를 잘 못잡겠습니다. 도와주세요..
해석과 함께 순서 잡아주세요~~~~~~

주어진 글 다음에 이어질 글의 순서로 가장 적절한 것은?
in the second century b.c. a young greek librarian had the job of trying to think of a more efficient way to order and retrieve the thousands of manuscripts that he had stored away. “how should i order these?” he wondered. “by subject? by author? by color?”.

a then, he thought of the alphabet. his contemporaries thought of it simply as a series of phonetic symbols-alpha, beta, gamma, delta, epsilon – that create words when joined together.

b thus, he put all the documents beginning with beta after those beginning with alpha but in front of those beginning with gamma. in the process, he created alphabetization, the primary means of ordering, storing, and retriving information.

c this librarian decided to deemphasize the alphabet’s linguistic qualities and emphasize the letter’ order in relation to one another.