The phrase "becomes white as a water lily" (line 42349) contains an instance of _________.
Simile is a figure of speech which compares a different kind of thing to an another kind of thing. Option C)simile is correct as Ah Leen's face is compared to a water lily. The other options are wrong as no other literary device is used other than simile in the given sentence. Allegory, exaggeration, and metaphor mean a figure of speech which characterizes an abstract idea, describing something as what it really isn't, and a thing which refers to another thing, idea, etc. respectively. The correct answer is C)simile.