Context: We visited the Eiffel Tower , UNESCO headquarters and sailed down the river Seine on a bateau - mouche and that was only day one . The next day we had to walk as the transport workers were on strike ( strike in France - unusual ! ! ) . We went to the Opera House which was perhaps the most beautiful building ever and shopped in the Galaries Lafayette ( Paris ' most famous department store ) . In the afternoon we visited the Sacre - Coeur and lunched in the Place du Tertre .
Question: What may be a fact about them in their situation ?
Option 0: They are on a vacation with others in France .
Option 1: None of the above choices .
Option 2: They had visited Paris in the past .
Option 3: They did a lot of walking in Paris .
Answer: 0