Choose the correct exclamatory sentence for the following sentence: It is a matter of regret that your grandfather has passed away.

It is a regrettable that your grandfather has passed away! Oh! We lost your grandfather! How regretful are we to lose your grandfather! Alas! You have lost your grandfather!

Alas! You have lost your grandfather!

The correct answer is Option (4) - Alas! You have lost your grandfather!