Answer:
properly communicating on the internet
i think i'm not 100% sure
Explanation:
I think it would be A. Cardio means to get your heart rate pumping so aerobic training is the best choice. Hope this helps.
I agree with you, I also think it's C
B because it’s not spoken you are typing it.
Answer:
Because if you don't and the risks out weigh the benefits something bad could happen.