Video Explanation

Text Explanation

Split #1: first of all, the sentence needs a verb.  The word "account" must be in a full bonafide verb, to provide a main verb for the sentence.  Choice (B), in making this a participle, "accounting", commits the famous missing verb mistake and so is incorrect.

Split #2: the GMAT does not approve of using the word "like" to list examples.  Choices (D) & (E) make this mistake, and are incorrect.  

Split #3: A logic problem.  We may not be familiar with biological taxonomy, but the word set-up in the prompt suggests, for example, that "even-toed ungulates" is the larger category, and the individual animals (pigs, cattle, etc.) are exampled included in this larger category.   Choices (C) & (D) change the meaning: in using the passive participle "included among," these choices suggest that the individual animals are the larger categories and that "even-toed ungulates" are some smaller classification within them.  This is factually incorrect, but even if you do not know the details of the scientific classifications, you can rely on the prompt to give you the correct logical relationships.   Choices (C) & (D) change the meaning, so they are incorrect. 

Split #4: Another logic problem.  The idiom "to account for" means, roughly, to show where the numbers or elements of something come from.  The prompt says that these larger biological groups "account for" the relatively small group of mammals domesticated for agricultural purposes: this is correct.  Choices (D) & (E) reverse this relationship, suggesting that the relatively agricultural small group can provide the membership for the much larger biological group.  First of all, that is patently illogical, but even if you don't fully understand this, recognize that, in changing the main verb from active passives, these two choices change the meaning from the one given in the prompt, and therefore are incorrect.  

The only possible answer here is (A).