Hello, the correct answer would be either A or D. B cannot be correct because it still remains a fragment. The same case is with C. A might be correct in the following sense: Since, they had traveled often. "Since" meaning - after that. And D might also be correct because if you delete "since", you are left with - "They had traveled often", which is a completely correct and completed sentence.
Well you can’t live without food and water because water hydrates you and well food keeps you not from starving cause it could possibly kill you I’m pretty sure so yea
The Mouse in "If you give a mouse a cookie", he has a cookie and wants the other thing afterwards. Three qualities the mouse has is he is smart, sometimes greedy and cravings
Poetry which is b I think