Enrique reads the thermometer outside his window but sees numbers on both sides of the red temperature line. Which best explains why two separate sets of numbers are shown on thermometers?
A: One set measures the daytime temperature and the other measures night temperature
B: One set measures in Fahrenheit and the other and the other measures in Celsius
C: One set is for counting by fives and the other by tens
D: one set is to measure temperature and the other is to measure length