Context: Use the graph to answer the question below.
Which statement is true about the average monthly temperature in Riyadh?
A. June, July, and August are hotter than the other months of the year.
B. Each month of the year has about the same monthly temperature.
C. December, January, and February are the hottest months of the year.
Identify the correct choice from the options below and respond with the letter of the correct option.

A