The air pressure in Denver, Colorado, is about 83% of the air pressure in Miami Beach, which is about sea level. Given that the air pressure in Miami Beach is 760 mm Hg and oxygen makes up 21% of the air in Miami Beach, what is the percentage of oxygen and the partial pressure of oxygen in Denver, respectively?
A) 17.4%; 21 mm Hg B) 21%; 21 mm Hg C) 21%; 132 mm Hg D) 17.4%; 132 mm Hg