The correct option is B that of any land animal
The comparison is between the speed of one animal with the other animals. The phrase 'any land animal' does not contain any mention of speed, hence option A is incorrect. In the second option 'that of any animal', 'that' demonstrates the speed of 'any land animal', hence it's correct. 'Those' is a demonstrative of plural nouns, speed not being a plural noun in this context, makes this option incorrect. Option D is incorrect because neither is the speed mentioned nor is it contextually correct.