সঠিক উত্তর হচ্ছে: is fairly unjustified
ব্যাখ্যা: Replace 'fairly' with 'rather'.
'Fairly' is used with pleasant adjectives e.g. fairly good, fairly wise etc.
'Rather' is used with unpleasant adjectives e.g. rather dull, rather difficult etc.
The correct sentence should be: “The amount which the Company has paid to the dependents of the dead worker is rather unjustified.”