Explanation: The tone of a text or sentence is the author's or speaker's attitude towards the audience, the subject or even the characters of the text. There are many different kinds of tones, like: positive, negative, objective, sad, angry, etc. The given phrase is an example of a sentence with a subjective tone, because it is influenced by the writer's opinion, to create an objective tone, we should replace the phrase "indisputably proves" with the word "suggests" because it is a more neutral expression.
Objective tone referes to an impersonal style of writing in which a message or idea is delivered, but no information about the author is provided. In order to replace "indisputably proves" to creat an objective tone the word "suggest" can be used. It is important to mention that the speaker in the proposal was invented by Swift to shock the readers about the injustice and terrible conditions of the Ireland of the time. It is possible to sense that the tone is not neutral, the author is in favor of the ideas of Swift. Being objective requires neutral facts that do not carry opinions.
