A. It gets your mind off your own troubles.
Seeing other people online that you may persevere as prettier than you or having a better body can have make you perceive yourself as ugly and not good enough.
Answer:
B
Explanation:
Low-fat or fat free dairy product greatly helps in reducing the chance of getting osteoporosis and if you want to fully prevent it, you can use cardiovascular exercises like dancing, walking, jogging, running, yoga, water aerobics, tai chi, ect.
(hope that answers your question :D)
Dual credit would be the answer