It is an old joke that Americans are soon going to lose the use of their legs ... but it is true that few Americans will walk anywhere if they can help it, either for practical purpose or for pleasure. You can do your banking from your car, without leaving the driving seat. You can mail your letters in postboxes that reach the level of your car window. You can watch a film from your car in a drive-in theater. At many stores you can be served in your car. At countless restaurants waitresses will hitch trays to the car door, so that you can eat without moving. In Florida there is even a drive-in church. And in California a funeral home has drive-in service for people who wish to purchase grave sites and caskets ahead of time.

Q. Underline the sentence which supports the answer to question No. 1.