One Atmosphere (1 Atm) of Pressure Is Equivalent to Which

Multiple Choice

One atmosphere (1 atm) of pressure is equivalent to which of the following?
1) 29.9 in Hg
2) 14.7 lb/in²
3) 1034.0 g/cm²
4) 760.0 mm Hg

A) 1, 2, and 3
B) 2 and 4
C) 1 and 3
D) 1, 2, 3, and 4