The table shows the location and number of floors in some of the tallest buildings in the world.

\fb. Find and interpret the standard deviation of the number of floors in this data set. Select the correct choice below and fill in the answer box within your choice. (Type an integer or decimal rounded to the nearest tenth as needed.) O A. The standard deviation of the number of floors in each city is O B. The standard deviation of the number of floors per city is O C. The standard deviation of the number of floors of the tallest buildings is O D. The standard deviation of the number of floors in each tallest building is