Calculations of cost and benefit are always which of following

china has confucianism thats everywhere in asia but it isn't really a religion.  

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.

an early twentieth-century ad for model home blueprints