The question asks to identify the pair of words that shares the same relationship as the given pair, "Peel ∶ Peal". The symbol '∶' represents the relationship "is related to", and '∶∶' signifies "is to". Therefore, the core task is to understand the connection between "Peel" and "Peal" and find a similar connection in the options.

Understanding the Peel ∶ Peal Relationship

Let's analyze the given words:

• Peel: This word can refer to the outer skin or covering of a fruit or vegetable (e.g., the banana peel). It can also mean the act of removing this outer layer.
• Peal: This word refers to a loud ringing sound, typically associated with bells.

The relationship between "Peel" and "Peal" is that they are homophones. Homophones are words that sound exactly the same when spoken but have different meanings and different spellings.

Analyzing the Options

We need to find the option where both words sound the same but have different meanings and spellings:

• Option 1: Coat ∶ Rind
  • Coat: An outer layer or covering.
  • Rind: The tough outer layer of certain fruits, cheese, or bacon.

  These words are related by meaning (both refer to outer coverings), but they do not sound the same. They are not homophones.

• Option 2: Laugh ∶ Bell
  • Laugh: To express amusement by making sounds with the face and voice.
  • Bell: A resonant metal object that sounds when struck.

  These words have completely different meanings, spellings, and pronunciations. They are not homophones.

• Option 3: Rain ∶ Reign
  • Rain: Water falling in drops from the atmosphere.
  • Reign: The period during which a sovereign rules; the authority of a monarch.

  These words, "Rain" and "Reign", sound identical (pronounced /reɪn/) but have different meanings and spellings. They are homophones. This matches the relationship observed between "Peel" and "Peal".

• Option 4: Brain ∶ Cranium
  • Brain: The nerve center of the nervous system, located in the skull.
  • Cranium: The part of the skull enclosing the brain.

  These words are related in meaning (the brain is contained within the cranium), but they do not sound the same and are not homophones.

Conclusion

The relationship between "Peel" and "Peal" is that they are homophones. Among the given options, the pair "Rain" and "Reign" also exhibits the relationship of being homophones. Therefore, this pair best expresses the same relationship.