Choose the idiom/phrase that can substitute the highlighted group of words meaningfully.
All the boys of Shemrock are similar in many ways.

The correct answer is (d) Birds of a feather.
Explanation: The idiom "birds of a feather" means people who have similar interests, beliefs, or characteristics tend to associate with one another. This phrase matches the idea of boys being similar in many ways.
Meanings of all options:
· Flocking birds: Birds that gather together, but not used idiomatically.
· Eats like a bird: To eat very little.
· A piece of cake: Something very easy to accomplish.
· Birds of a feather: People who are alike or share similar characteristics.
Correct sentence: "All the boys of Shemrock are birds of a feather."