Context: Read the passage. Then answer the question.

A cow grazing in a field often disturbs insects that are hiding in the grass. When the insects hop or fly away from the cow, they are more visible to predators such as cattle egrets. An egret can catch more insects when it forages, or looks for food, near the grazing cow than when it forages away from the cow. When the egret forages near the cow, the egret does not help or harm the cow's grazing.
Figure: a cattle egret foraging near a cow.
Which type of relationship is formed when a cattle egret forages near a cow?
A. parasitic
B. commensal
C. mutualistic
Identify the correct option from the choices provided and respond with the letter of the correct option.

B