How can you use color-coding to identify supporting details?
a) highlight the topic sentence of each paragraph in the paper
b) highlight only the details that identify dates, times, and periods
c) highlight sentences longer than twelve words in a unique color
d) highlight each category of detail with a different color

I am pretty sure that the way how you can use color-coding to identify supporting details is shown in the last option - D) highlight each category of detail with a different color, because this is the only option that mentions different colors which is essential for color-coding marking.

Possibly a hyperbole! This is an exaggerated statement-the speaker doesn't literally mean that the woman transformed into a tiny speck, it merely looked as though she did with how far away she was from the storyteller.