Not sure how this has to do with Health but my answer would be to not buy things online at all. Nowadays it's EXTREMELY easy to get robbed of your money, by people that live across the world. Your bank account can easily be accessed through a phone, computer, gaming system, credit/debit card, check book, etc. I covered things both online and off. Stay safe!
Blood carbon dioxide level
Characterized by an inadequate number of circulating red blood cells due to the premature destruction of red blood cells by the spleen. ... A group of bone marrow disorders that are characterized by the insufficient production of one or more types of blood cells due to dysfunction of the bone marrow.
The benefits of strength training improved bone health, decreased risk of injury, increased strength, and controls body fat.
The correct answer is C. Being responsible because making decisions like being safe and healthy are simply being responsible. You do not have to be a critical thinker to formulate this, and there are no problems being solved here. The person is also not communicating to anyone, which only leaves Choice C.