DIRECTIONS Look at each set of three vocabulary terms. On the line provided, write the letter of the term that does not relate to the others. 1. a. Cattle Kingdom b. cattle drive c. Pony Express 2. a. Comstock Lode b. Chisholm Trail c. cattle drive 3. a. boomtowns b. frontier c. Comstock Lode 4 a. cowboys b. cattle drive c. boomtowns 5. a. Pony Express b. transcontinental railroad c. standard time 6. a. transcontinental railroad b. Pony Express c. cowboys 7. a. cattle drive b. Comstock Lode c. open range​