Answer:
By exaggerating the truth.
Step-by-step explanation:
To exaggerate any statement or claim is to provide excessive or "over-the-top" details or explanations. It is to say or make a claim about something which is more than it really is, in order to make it seem more attractive or 'to give it extra points'.
Modernist writers use to sugarcoat their claims by providing exaggerated details about their ideas. This makes their claim seem more 'valid', making them seem like they are the best. And with the use of such claims, they use unreliable sources so that it will make their claim seem genuine and acceptable.
Thus, the correct answer is the first option.