The earthquakes data set gives data for a select set of notable earthquakes from $1900$ to $1999.$

Download the earthquakes.cSV darr data file, then import the data file into RStudio $($upload the file, click on the file name to import, then click to import into the environment$).$ View the data set and use it to answer the question.

Which of the following best characterizes the type of variable that "month" is$?[$type$]$