The main reason is because of the cold temperatures
Answer: I would say D. (or 4.)
Explanation: Because you start to get warm and sweaty at around 1 hour of exercise. And it reduces the risk of chronic diseases.
(Information found from https://www.cdc.gov physicalactivity, walking)
Answer:
People who want to work and have jobs are said to be (B. employed).
Pollute the ocean I believe .. tell me if im wrong
Increased employment opportunities.
Typically the reason people move isn't because they have access to more job positions.