Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

a. Pursuing a career in education, he helped countless students and was awarded the title “Nhà giáo ưu tú” for his outstanding contributions.
b. Born in Nam Định Province, he underwent a very tough early childhood, losing his arm ability at the age of 4 due to polio.
c. Despite this disability, he demonstrated remarkable determination by learning to write with his feet, and achieving top grades at school.
d. After his retirement, Ký continued to contribute to the society as a writer, leaving a lasting legacy that continues to inspire generations of Vietnamese people.
e. Nguyễn Ngọc Ký, a prominent Vietnamese educator, overcame significant adversity in his life to achieve success and inspire generations with his resilience and dedication.