Select the Venn diagram that best represents the relationship between the following classes.

Birds, Ostriches, Bats

Given: Birds, Ostriches, Bats

Based on the relationship of the given word, the correct Venn diagram will be:

Birds and Ostriches → Ostriches are a type of bird (Subset relationship).

Bats → Bats are NOT birds; they are mammals

The correct diagram should show one circle inside another (Ostriches inside Birds) and one separate circle (Bats)

Thus, the Correct option is (d)