The models are shaded to show which of the following?

• A. \[\frac{1}{3}=\frac{2}{4}\]          
• B. \[\frac{1}{4}>\frac{1}{3}\]
• C. \[\frac{2}{3}<\frac{2}{4}\]          
• D. \[\frac{2}{4}<\frac{2}{3}\]