Flocks of finches could easily become separated

This question is from a comprehension passage about bird behaviour, specifically about how flocks of finches move and feed.

Finches are small seed-eating birds that typically travel in flocks for safety and social interaction. However, when they land on trees to feed, individual birds spread out along different branches searching for insects or seeds. As each bird follows its own foraging path through the branches, members of the flock naturally drift apart from one another. This dispersal during feeding is what causes the flock to become separated.

The other options do not accurately describe the cause of separation as presented in the passage. Injury from other birds, hunger after separation, and fleeing from predators are not the reasons the passage gives. The separation happens naturally and gradually as the finches hunt for food among the branches of trees, each bird moving independently to find its own insects or seeds.

The correct answer is when they hunt for insects or seeds on the branches of trees.