So how I can do be the same do so then yes okay so why 1235
I'd have to say d. the hand, because every human (for the most part, no offence intended to anyone) has a hand and is able to make good (or bad, rather) use of it. It's what a person always has access to at any given time or place, even if they don't have access to one of the other options.
It is true because cross-ventilation is (almost) required in order for the users safety.
Explanation:
you can think to highly of ur self and come crashing down and give up easy
Chest is the correct answer
