The third one.
Yes because it asks a question that can be answered correctly.
I would say this, “Yes, I am surprised by this because that is a very large amount of clothing that is just going to waste and isn’t being used. Throwing out that much clothing is harming the environment, especially when the clothes could go to people in need.”
A paradox contradicts itself so therefore it would have to be “Well, one must be serious about something, if one wants to have any amusement in life.”