I think the answer is C.<span>saying no to a risky situation. Because you are REFUSING to a risky situation.
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<span>To create a seal on an unresponsive person’s face using a ventilation mask, lift the Person's jaw into the mask.
The upper part of our head has a larger diameter compared to our jaw.
So, when putting a ventilation mask for an unresponsive person, it would be faster and easier if we enter the mask from the jaw.</span>
The correct answer is the BBB.
The BBB is the blood brain barrier and alcohol is able to cross this barrier and reach brain cells which has negative effects on the body. Once alcohol reaches the brain cells it attacks them and as a result the central nervous system (CNS) is affected and changes in cognition and coordination take place.