Which of the following are continuous functions?

Which of the following are continuous functions? (Select all that apply.) The temperature at a specific location as a function of time. The temperature at a specific time as a function of the distance due west from New York City. The altitude above sea level as a function of the distance due west from New York City. The cost of a taxi ride as a function of the distance traveled. The current in the circuit for the lights in a room as a function of time. None of these. X