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. Night shifts can be particularly demanding on employee wellbeing and health.
b. To combat this, we do not have employees on night shifts for extended periods.
c. Due to the nature of our business, it's sometimes necessary that our staff work at night.
d. This can include disruption to the body clock, fatigue, sleeping difficulties, disturbed appetite and digestion, reliance on sedatives or stimulants, social and domestic problems and other symptoms of ill health.
e. This is because workers' bodies will just have started to adapt to the new pattern.