Answer:
https://dokumen.pub/sample-return-missions-the-last-frontier-of-solar-system-exploration-1nbsped-0128183306-9780128183304.html
Explanation:
None of the above (N.D.A in Portuguese)
My hobby is what? Surfing
Any part of the sentence that answers 'what' is the Direct Object
I think that the simplest yet understandable sentence is the final choice: Everyone worked quietly. Hope that helps you.