Which one of the following happens when we execute the code below:

df $\%>\%$ mutate$($income$\_$level $=$ ifelse$($income $>10,$ 'High', 'Low'$))$

The entries of the column 'income' are replaced with 'High' and 'Low'

A new column called 'income$\_$level' of categorical $($factor$)$ type is added to the dataframe $\text{'}$df$\text{'}$

A new column called 'income$\_$level' is added to the dataframe $\text{'}$df$\text{'}$

Column name 'income' is renamed as 'income level'