According to the passage, what is the main difference between Alaska and California?

Responses
A Dogs are more expensive in Alaska than in California.Dogs are more expensive in Alaska than in California.
B California would provide an easier life for the dog than Alaska.California would provide an easier life for the dog than Alaska.
C Alaska would provide an easier life for the dog than California.Alaska would provide an easier life for the dog than California.
D Mr. Miller would prefer working in California over working in Alaska.

The passage does not mention any difference between Alaska and California regarding Mr. Miller's preference for working. Therefore, option D is not supported by the passage.