Who used lassos, lariats, steel spurs, and saddles?
a) female homesteaders
b) women suffragists
c) immigrants working on the railroad
d) cowboys and gauchos
e) american indians

The people who most likely to use lassos, lariats, steel spurs, and saddles were the cowboys and the gauchos. They used these to go on cattle drives, and normal everyday things back in those times. Horses were the main mode of transportation and saddles were a must. The correct answer is D. 

It's most likely choice a, it makes the most sense in my opinion.