Suppose yesterday morning you noticed ice crystals (frost) on the grass, yet the minimum temperature reported in the newspaper was only 35o F. The most likely reason for this apparent discrepancy is that:

• A. The thermometer was in error
• B. The thermometer was read incorrectly
• C. The newspaper reported the wrong temperature
• D. The thermometer was read before the minimum temperature was reached for that day
• E. Temperature readings are taken in instrument shelters more than 5 feet above the ground

Answer: (E)