Answer: . Option "1" is correct, "in the same boat together on the vacation" literally means "in the same situation together on the vacation"
Explanation: In the context above the phrase being "in the same boat" is an expression used when two or more people are in similar situation. Mostly it is used in unpleasant situations, for example; Sara complains a lot of not hanging money, not knowing we all are in the same boat, this means that everyone is short of cash also.
