According to data, approximately 47.6 million Americans experience some form of mental disorder in 2018. This is a very huge number; to put into perspective, the population of America, in 2018, was roughly 327.2 million. This means that 19.1% of U.S. adults, i.e. 1 in 5 adults, experienced mental illness in 2018. Hence, the closest option to the real statistics is option (b): more than 50 million
Both A and B, because if you have bad posture you will have weaker bones which can make you get hurt easier plus weaker bones will not be safe especially if you got in a car wreck.
