Question

All of the following developments helped make the cattle business profitable except:

A.
barbed-wire fences

B.
new railroads and refrigerated cars.

C.
growing cities in the East

D.
cattle trails

Answer 1

The answer is:

B.(new railroads and refrigerated cars)

I took the test, hope this helps!

Answer 2

There is no proof that the barbed-wire fences were a development helping make the cattle business profitable. The rest of them are ok. So the one that must not be here is the option A.