Rosa made a chart to summarize the characteristics of two types of social behavior.

A 2-column table with 3 rows. Column 1 is labeled X with entries done by grazing animals, increases protection from predators, increases reproductive success. Column 2 is labeled Y with entries done by carnivores, divides labor among group members, makes foraging more efficient.

Which headings best complete the chart?

X: Herding
Y: Cooperative Hunting
X: Flocking
Y: Migrating
X: Cooperative Hunting
Y: Herding
X: Migrating
Y: Flocking

X: Herding

Y: Cooperative Hunting

The best completion for the chart would be:

X: Herding
Y: Cooperative Hunting