In addition to speeding up the transportation of goods, the transportation revolution also contributed to the growth of
a
new cities across the country
b.
the slave trade in america
free public education
c
d
labor unions on the east coast.

D: Labor unions on the East coast. Soon, both railroads and canals crisscrossed the states, providing a transportation infrastructure that fueled the growth of American commerce. Indeed, the transportation revolution led to development in the coal, iron, and steel industries, providing many Americans with new job opportunities.

Explanation:

porter is writing economic history because he is focusing on the cost of developing vaccines.

listed the works which were

banned by the church=index librorum prohibitorum

questioned many tenets

of the catholic church=

martin luther’s

ninety-five

theses

an authoritative treatise

on witchcraft=mallets maleficarum

a set of meditation, prayer, and

contemplation exercises to

strengthen one’s relationship

with god=spiritual exercises

hope it ✔