Read the excerpt from "Politics and the English Language" by George Orwell.

Probably it is better to put off using words as long as possible and get one’s meaning as clear as one can through pictures or sensations. Afterwards one can choose—not simply accept—the phrases that will best cover the meaning, and then switch round and decide what impressions one’s words are likely to make on another person. This last effort of the mind cuts out all stale or mixed images, all prefabricated phrases, needless repetitions, and humbug and vagueness generally.

Which best describes George Orwell’s purpose and the way he achieves it in this excerpt?

Orwell’s purpose is to inform his readers about political events. He achieves this by listing important events of his day.
Orwell’s purpose is to inform his readers about political events. He achieves this by quoting a current news article.
Orwell’s purpose is to persuade his readers to use simple language in political writing. He achieves this by suggesting steps writers can take to choose their words carefully.
Orwell’s purpose is to persuade his readers to use simple language in political writing. He achieves this by giving an example of a well-written political speech.