I think the correct answer from the choices listed above is option D. The figure of speech being used here is a simile. The use of the word "as" shows that a simile is being used to compare the quality of the fleece to snow. Hope this answers the question. Have a nice day.
An <u>aggregator</u> is a type of software for computers and mobile devices that reads a user's specified web feeds and collects their most recent content.