This is an **analogy-based classification** question. The logic is:
Cow is a herbivorous animal (feeds on plants).
We need to find what feeding classification applies to a **Tiger**.
Tigers are predators that hunt and eat other animals — they are purely meat-eaters. This makes them **carnivorous** animals.
So the correct relationship is:
\[
\text{Cow : Herbivorous :: Tiger : Carnivorous}
\]
\[
\boxed{\text{Carnivorous}}
\]