When $1 \ mol$ of fluorine reacts with $2 \ mol$ of hot and concentrated $KOH$,the products obtained are $KF$,$H_2O$,and $O_2$. The molar ratio of $KF$,$H_2O$,and $O_2$ produced is respectively:

• A
  $1 : 1 : 2$
• B
  $2 : 1 : 0.5$
• C
  $1 : 2 : 1$
• D
  $2 : 1 : 2$