One Recent Study Placed Rats on a Schedule of No

One recent study placed rats on a schedule of no food for 12 hours, followed by an opportunity to eat a sweet, syrupy liquid. The results of this study found that the rats

A) developed a learned taste aversion to the liquid.
B) learned that avoiding the liquid was reinforcing, and they developed what appeared to be symptoms of anorexia.
C) ate more of the rich liquid with each repetition of the cycle.
D) became lethargic and refused to eat their normal diet when it became available.