If it were 85` F at ground level,What would the temperature there be at the top of a 2500-ft. hill(1/2 a mile)

Question

a.)85`F
b.)95`F
c.)75`F
d.)80`F
e.)90`F

Answer 1

The closest answer for an average lapse rate of 3.6F/1000 ft would be c) 75 F.

Answer 2

Temperature drops about 2C per thousand feet so the temperature would be about 5C or 9F lower. Pick the best answer yourself. This this an idealized situation that ignores ground heating.

Answer 3

the most realistic possible answer out of the 5 choices for this question would have to be either 75f or 80f.