Ravenous, and now very faint, I devoured a spoonful or two of my portion without thinking of its taste; but the first edge of hunger blunted, I perceived I had got in hand a nauseous mess; burnt porridge is almost as bad as rotten potatoes; famine itself soon sickens over it. The spoons were moved slowly: I saw each girl taste her food and try to swallow it; but in most cases the effort was soon relinquished. Breakfast was over, and none had breakfasted. (Jane Eyre; Chapter 5, pp. 30-31)

In the excerpt above, what is the depiction of the food an example of?

A. characterization

B. a foil

C. mood

D. a motif