Inline Dropdown Question

Choose the word from each drop-down menu that BEST completes the sentence so that it describes a connection between New York and Paris that is mentioned in the text.

A raised bed was made for ​___ 1. trains 2. wagons 3. horses 4. automobiles.
in each city, but when the beds were no longer ​____ 1. safe 2. attractive 3. useful 4. popular
, it was decided to use the beds for ​___ 1. recreation 2. education 3. experimentation 4. transportation
.

A raised bed was made for trains in each city, but when the beds were no longer useful, it was decided to use the beds for transportation.