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. Each day brings new challenges that require me to think logically to write different codes.
b. After all, my job is highly demanding, but it’s fulfilling to create something practically functional.
c. As a software developer, my job involves solving complex problems and even unexpected ones.
d. My job requires collaboration, so I often work with other developers to brainstorm solutions.
e. Therefore, there’s a real sense of satisfaction in completing a project in a team.
f. Some friends of mine think I often stay up late, working on my laptop alone, but it’s not true at all.