The standard atmospheric pressure is 762 mm of Hg. At a specific location, the barometer reads 700 mm of Hg. At this place, what does an absolute pressure of 380 mm of Hg correspond to?
a. 320 mm of Hg vacuum
b. 382 of Hg vacuum
c. 62 mm of Hg vacuum
d. 62 mm of Hg gauge