Question

question 1-14
the diagram below shows developments in the late 19th century.
bessemer process
improvements in communications
?
second industrial revolution
rise of oil and electricity industries
which development completes the diagram?
invention of television
invention of the steam engine
spread of railroads across the nation
introduction of the u.s. patent system

Explanation:

The Second Industrial Revolution (late 19th - early 20th century) was characterized by advancements in various fields. The Bessemer process improved steel - making, communication improvements were significant, and the rise of oil and electricity industries was a hallmark. The spread of railroads across the nation was also a major development during this time, facilitating transportation of goods and people, and integrating markets. The invention of television came later, the steam engine was part of the First Industrial Revolution, and the U.S. patent system predated the Second Industrial Revolution.

Answer:

C. Spread of railroads across the nation