Since you didn't include the options, a combination eating less and exercising more generally results in weight loss.
B is correct because I have learned Psychology relating to this
I should say that's a little bit impossible, you have no money to do it, your parents will need to do it for you, so, it's not like "ok" but sometimes it happens and will need to be this way.
Roaches are evil my dude, I think they've always been this way but we've never noticed
Answer: To maintain Cellular respiration
Explanation:
The body must take in oxygen so that the blood cells can absorb it. This allows the blood cell to release CO2. Therefore, Inhaling oxygen is necessity for maintaining cellular respiration.