What caused the cattle industry to lose profitability?

A-During this time, pork became more popular and considered the "new meat".

B-Beef went down in price and farmers could not move the cattle due to fences.

C-Settlers became vegetarians and did not eat meat.

D-When the cows became too large, it became more difficult to herd them.

E-Due to disease, cattle became sick and unable to be processed for meat.