Question

(PLZ ANSWER ASAP) A Texas History teacher wrote these bullet points on the whiteboard. What was the most likely topic of discussion?

- Invention of barbed wire
- Introduction of windmills
- Expansion of railroad lines

a. Scientific Discoveries in Agriculture
b. The Close of the Frontier
c. Availability of Communication
d. Improvement of Transportation

Answer 1

b.

Step-by-step explanation:

It wouldn't be A because they all aren't scientific discoveries.

It wouldn't be C because barbed wire and windmills do not fall under the communication category.

It wouldn't be D because windmills are not transportation.