There are 20 states in a certain country and every pair of them is connected by a road way. How many road ways are there?	Select:
A) 22  B) 277  C) 288  D) 266  E) 2A1
22nswer:22
<result>A</result>
There are 20 states in a certain country and every pair of them is connected by a road way. How many road ways are there?