There are 13 South American countries, Anni has won a ticket to fly from Denver to one South American country and then directly to another South American Country before returning home to Denver again. Assuming there are four airports in each country, how many flights paths can Anni choose from?	Choose the correct choice from the following options
A) 13.12.11.10.4.4.	B) 13.12.11.10.4	C) 13.12.4.4.	D) 13.12.4	E) 13.13.13.13
flights paths can Anni choose fromThere are 13 ways to chose the first destination,   then, 12 ways to chose next destination, with option of 4 airports (13x4)   then, to return he has 4 options to chose the airports   Thus, 13*12*4*4 ways.   Using permutations:   If the solution had written 13P1 instead of 13C1 it won't matter. As per the definition - making arrangements of the combinations gives permutations.   Since there are no arrangement for 1 item, permutationscombinations are equal.13.12.4.4.
<result>C</result>
There are 13 South American countries, Anni has won a ticket to fly from Denver to one South American country and then directly to another South American Country before returning home to Denver again. Assuming there are four airports in each country, how many flights paths can Anni choose from?