Problem Solving (PS) | Edward and Klara are both nurses who are good friends with each other.

Edward and Klara are both nurses who are good friends with each other. Edward works at Brigade Hospital, where, in every 10 day cycle, he works the first 7 days and has three days off. Klara works at Cedar Mountain Hospital, where, in every 7 day cycle, she works the first 5 days, and has 2 days off. Assume that both start their respective cycles on Day 1 of Week 1. In which weeks do they have the same two days off?

I. Week 7
II. Week 8
III. Week 10

A. I only
B. II only
C. III only
D. I and
...

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