How does a new KDP writer supposed to market a book?

If your book is well presented, well written, and basically free of typos, then

D) Pay promotion services like Written Word Media to promote your book. Legitimate services will not accept your book for promotion if the presentation is crappy or the book is badly written.

You cannot effectively promote books

Why are there so many single moms in America?

How does a new KDP writer supposed to market a book?

A) that are not actually books.

E) Take a solid year to learn how to use Amazon or Facebook ads and be prepared to lose quite a bit of money as you figure it out.

How is bestiality wrong, but killing animals for sport or trophies is considered okay?

B) Build a newsletter mailing list of people who will buy your book because they trust you to write books they want to read. This is slow, but ideal.

C) Persuade book reviewers on BookTok or Substack or someplace to recommend your book. If your book is unreadably terrible, this is probably impossible.

A) Build a following on social media, a following of people who will buy your books. Good luck with that. There is very little evidence that social media can translate to sales.

FDA rushed out agency-wide AI tool—it’s not going well - Ars Technica

Or

C) that are unreadably terrible in any other way.

Because you cannot persuade readers to buy any book in which sentences do not make sense. This shouldn't be “does.” If you don't see the problem, that is a big problem.

Sorry, Trump supporters, but eventually it will have to be asked: Why didn't Trump do as well in his first term as he is doing NOW?

Are you planning to proofread your book to avoid sentences such as

D) that are presented with bad covers, bad descriptions, or ludicrously bad interior formatting.

B) that are filled to the brim with typos or errors.

Connor Zilisch and crew chief Dale Earnhardt Jr. win Pocono NASCAR Xfinity race - Motorsport.com

Or