Write the letter A, B, C or D on your answer sheet to indicate the best arrangement of sentences to make a logical text in each of the following questions from 11 to 12.

Yesterday, my sister had an unforgettable experience on her first day at work. ______

a. After that, she was introduced to all the team members and started her first project.

b. To begin with, she arrived at the office very early to prepare for the meeting.

c. Finally, she felt very tired but she was extremely happy with what she achieved.