Choose the odd pair of words:​

Living being : Its dwelling/place of living

Hare : Burrow — A hare lives in a burrow.

Igloo : Eskimo — This is place : living being (reversed order). An Eskimo lives in an igloo, not vice versa.

Dog : Kennel — A dog lives in a kennel.

Lion : Den — A lion lives in a den.

Thus, Option b (Igloo : Eskimo) is different because the order is reversed compared to the other pairs.

So, the correct answer is Option b.