Question

the following sentence was taken from an act english section. choose the option that best expresses the idea, makes the statement appropriate for standard written english, or is worded most consistently with the style and tone of the sentence as a whole. if you think the original version is best, choose
o change\.
the theory that our 12th president, zachary taylor, was poisoned but is disputed by historians.
○ no change
○ and was disputed
○ is disputed
○ disputed

Explanation:

The original sentence has a logical contrast between the theory of poisoning and historians' disputing it. The conjunction "but" is appropriate to show this contrast. "and was disputed" would imply a sequential or additional action rather than a contrast, "is disputed" would create a subject - verb agreement issue (the subject of the main clause is "The theory... was poisoned", and "is disputed" has a different tense and doesn't fit the contrast well), and "disputed" is a past - participle and would make the sentence ungrammatical as it lacks a proper verb form to connect with the rest of the sentence. So the original version with "but is disputed" is the best choice.

Answer:

No change