In each of the following questions, one phrase has been given and it has been followed by four sentences. You have to find out in which of these sentences the phrase has been used properly according to its meaning and mark your answer from the options. Mark your answer 'all correct' if you find that phrase has been applied properly in all the sentences.

Off the cuff

I. The senator has become known for making off-the-cuff remarks that create controversy.

II. Lewis Hamilton and Nico Rosberg were off the cuff until the end.

III. The company has asked us to design an advanced engine which is off the cuff.

IV. I didn't have time to organize my thoughts, so I just spoke off the cuff.