Step 1: Understanding the Question:
This is a word analogy question where we need to identify the underlying relationship between the first pair of words and apply that same relationship to the second pair to find the missing word.
Step 2: Detailed Explanation:
The relationship in the first pair, "Puppy : Dog", is that of a young one to its corresponding adult form. A puppy is the young offspring of a dog.
Applying this exact logic to "Calf : ?", we need to find the adult animal whose young one is called a calf.
A calf is widely known as the young offspring of a cow.
Let's verify the other options to be absolutely sure:
- The young one of a horse is called a foal or a colt.
- The young one of a cat is called a kitten.
- The young one of a lion is called a cub.
Therefore, "Cow" is the correct matching pair.
Step 3: Final Answer:
The correct answer is Cow.