If you were a woman in the "old american west", there was a 20% chance that you would be employed in what profession at the local brothel?

There was a 20% chance that you would be employed as a prostitute if you were a woman in the "Old American West”.  

In the Old American West, the mining population was composed of 95% young and male people so a high demand during that time was female companionship. Saloons also doubled as a brothel during this time.

1st and 3rd : ) now lemme smash

i believe the answer is c