Answer: They
Explanation: The pronoun is they if you want to use it on a sentence it would be they.
Un carro es el mejor. El tren es peligroso porque las personas raras. El autobus es tan peligroso. La bicleta es divertido pero agotador. Ten cuidado.
That's a tricky question because while a "siesta" is indeed a nap that most do, it is not only done in the USA. So I would have to say the answer is TRUE if I were someone living in the USA. Hope that helps!
