Refer to the figure.
Based on the experimental data graphed in the figure, which of the following statements is true?

A) Time spent foraging in a patch depends only on the quality of the patch.
B) Time spent foraging in a patch increases with increasing travel time between patches.
C) The observed relationship between foraging time in a patch and travel time between patches is the opposite of the relationship predicted by the marginal value theorem.
D) Foragers spend less time in patches if the patches are far apart because they need to allow more time for traveling between patches.