It seems the second answer you have provided for this question is the best fit for what the question is specifically asking. Have a great day!
Answer: 3, "We are going depleting in the mountains this weekend'
Explanation: Depleting means "diminish in number or quantity'. It would make no sense to use that in this particular instance.
Answer:
Get a bigger bedroom or a smaller train.
Explanation:
Of the bedroom is too small then if you get a smaller train the train won't be so big anymore and can now fit. If you get a bigger bedroom then the train will fit because there is more room.