Starting from 60°F at sea level, the temperature increases by 1/10 of a degree for every 100-foot increase in elevation. To find the temperature at 2000 feet, we need to calculate how many 100-foot increases in elevation there are from sea level to 2000 feet:
2000 ft ÷ 100 ft/each = 20
So, the temperature would increase by 1/10 of a degree for 20 times, which gives:
20 × 1/10 = 2 degrees
Therefore, the temperature at an elevation of 2000 feet would be:
60°F + 2°F = 62°F
So, the answer is (B) 62°F.