Why should listeners pay close attention to word choice?
to better understand the speaker's intentions
so as not to confuse connotation and tone
to allow their emotions to be manipulated by the speaker
all of these

To better understand the speaker's intentions.

Explanation:

When an author writes any text, he puts particular attention to his choice of words. He does so because he is aware of the fact that particular words have particular connotations and meanings. Therefore, he has to chose those that best suit his purposes. If the reader pays close attention to the word choice of the author, he will better understand the speaker's intentions.

in this passage from chapter 6 of "animal farm", by george orwell, what the author is ridiculing in this passage is the frivolity of some rules.

clover, the mare, believes she remembers that the fourth commandment forbade sleeping in beds because it was something that humans did. snowball, napoleon, and the pigs are brain-workers who look after the welfare of the farm. they are the obvious leaders because they are smart, and so they are entitled to eat the best food and sleep in beds. it is squealer, who says these lines making the difference between sleeping with sheets, what humans do, and sleeping in beds, what pigs do. the unwillingness to question authority makes the oppressed to obey without thinking.

the apollo program, also known as project apollo, was the third united states human spaceflight program carried out by the national aeronautics and space administration (nasa), which succeeded in landing the first humans on the moon from 1969 to 1972.