What Could the Following Graph Reasonably Represent?

A) the Average

Multiple Choice

What could the following graph reasonably represent?

A) The average daily temperature of Denver over a one-year time period with $t=0$ being July 1.
B) The average daily temperature of Denver over a one-year time period with $t=0$ being January 1.
C) The population of Denver between 1900 and 2000 with $t=0$ being 1900 .
D) The infant mortality rate in Denver between 1900 and 2000 with $t=0$ being 1900.