To determine the maximum relative humidity recorded on that day, we need to understand how relative humidity works. Relative humidity is expressed as a percentage, with 0% meaning the air is completely dry and 100% meaning the air is fully saturated with moisture.
Given that the minimum relative humidity was 38%, the maximum relative humidity must be higher than this value. Among the answer choices provided:
A) 32% - This is lower than 38%, so it cannot be the maximum. B) 80% - This is above 38%, so it's a possible maximum. C) 85% - This is also above 38%, making it another possible maximum. D) 100% - This is the highest possible relative humidity.
Since there can be a range of humidity during a day, any value above 38% could be the maximum. However, since we typically look for the highest value recorded, the maximum relative humidity could potentially be 100%.
Therefore, without additional context, the answer would be:
D) 100%