Why was the introduction of Herefords considered a ranching innovation?
A.
Herefords were smaller and better suited to living on enclosed ranches and farms.
B.
Herefords improved the stock by creating meatier cattle.
C.
Herefords proved resistant to the Texas fever carried by longhorns.
D.
Herefords created a leaner stock that was more capable of being driven to markets farther away.