What purpose is served by including
Smith's observations on visiting a
pin-making factory?​

It shows that businesses do best when they are in competition. It illustrates the tedious work being done by people in factories. It proves that capitalism was helping improve people's lives.

Explanation:

hope thats helps you out :)

we pointed them north: recollections of a cowpuncher by e.c. “teddy blue” abbott tells us of the history of nomad cowboys in north america. as the   frontiers began moving west, trails of cowboys of the 1870s and ’80s drove herds of cattle from texas to the northern ranges and railheads, and then rode back south to do it again. they gradually pushed   native americans out of their lands, until in 1889 the   government transferred white   colonists the indian land.

the correct answer is that she and her husband signed a farming contract with their former master. the land was divided into smaller plots with housing for sharecroppers. in this piece, the author is criticizing white extremists.