How did advances in refrigeration technology affect cattle ranching in Texas?

A. They helped slaughterhouses become more sanitary, raising the price of beef.

B. They allowed beef to be shipped in from distant countries, lowering the price.

C. They led to a meatpacking industry in Texas, decreasing the need for new cattle
drives.

D. They made it easier to keep dairy products fresh, creating a shift from beef cattle
to dairy cattle.