"I'm sorry I couldn't come to your birthday party last Friday, Jane," Bod said.
A. Joanna suggested going for a walk because they had been working all day.
B. Joanna insisted on going for a walk because they had been working all day.
C. Joanna suggested going for a walk because they have been working all day.
D. Joanna suggested going for a walk because she had been working all day.
