Given that the temperature of an air parcel at 0 feet is 56ºF and the dewpoint throughout the atmosphere is 41ºF, what is the temperature of the surrounding air parcels (i.e., atmosphere) as a function of altitude?
A) 56ºF at all altitudes
B) Decreases linearly with altitude
C) Increases linearly with altitude
D) Remains constant at 41ºF at all altitudes