The allusion is exemplified as the literary device through which the author proposes a quick and indirect allusion or reference to a particular personality, place, event, idea, or object that carries its significance historically, literary, politically, and culturally. The chief aim of employing such a device is to uplift the contextual value and relevance of the text.
In the given quote, the author employs literary allusion to enhance the contextual worth of the text (as reflected by the reference to great literary fiction like 'Frankenstein' by Mary Shelley and G.B. Shaw's famous play 'Pygmalion') that requires the readers' to possess prior knowledge to have a comprehensive understanding of the author's intended idea. Therefore, '<u>allusion</u>' is the correct answer.