OFFICIAL EXPLANATION
The Blue Whale, African Elephant, and Indian Elephant are three heaviest animals in the world.
A. The Blue Whale, African Elephant, and Indian Elephant are three heaviest animals in the world
This answer choice is grammatically incorrect. The superlative form, indicated here by the use of the word heaviest, must be preceded by the word the. In this sentence, three heaviest animals in the world is not preceded by the.B. The three heaviest animals are the Blue Whale, African Elephant, and Indian Elephant
Although this answer choice corrects the original Superlative error by adding the word the before three heaviest, it is still grammatically incorrect. The Superlative form, indicated here by the use of the words the three heaviest, requires that the group under comparison be defined. However, this answer choice does not provide information about the group of which these three animals are the heaviest.
In order for this Superlative to be complete, this group must be defined.C. The Blue Whale, African Elephant, and Indian Elephant are the three heaviest animals in the world
The superlative form, indicated here by the use of the word heaviest, must be preceded by the word the.D. The three heaviest animals in the world is the Blue Whale, African Elephant, and Indian Elephant
Although this answer choice corrects the original Superlative error by adding the word the before three heaviest, it is still grammatically incorrect. The plural subject The three heaviest animals does not agree with the singular verb is.E. The Blue Whale, African Elephant, and Indian Elephant are the three heaviest animals
Although this answer choice corrects the original Superlative error by adding the word the before three heaviest, it is still grammatically incorrect. The Superlative form, indicated here by the use of the words the three heaviest, requires that the group under comparison be defined. However, this answer choice does not provide information about the group of which these three animals are the heaviest.
In order for this Superlative to be complete, this group must be defined.