C) reach out to those people, showing them how to make the pain go away.
Each step can be hard, or easy.
Firstly, it sounds like you built a product without understanding (yet) your customer. Which can mean you have a "solution looking for a problem". It can be hard to find enough pain in this case because it's harder to find a problem to a solution than a solution to a problem.
Or its easy, your solution generates cash - or some such universal pain.
Secondly finding people with specific pain takes work. Your solution might only appeal to say small town vetenarians. Which means you need to start touring small towns. (Which would be expensive, but you can start I small towns near you.)
Getting people to pay may be hard. They worry about the new pain your app will bring. The existing pain might be slight an thus ignorance.
Generally speaking, it's easier to find problems, and build a solution for them, than it is to build a solution, then look for problems. And ideally you have paying customers signed up before you start constructing the solution.
As creators we want to create first, and find customers later, and yes can work, but you have to be a bit lucky. It's not a sure thing.
Business people won't buy because it is "AI". Don't conflate the opinions of tech bloggers with the pragmatic demands of people running businesses.
A grizzled old business person once said to me: "Show me how it makes me money or saves me money." If you aren't well versed in a specific business domain, you will struggle to demonstrate the benefits of your "solution".
Another problem I have encountered is that large firms (those with the most money to spend) only want to deal with vendors who also are large firms.
Maybe you should ask yourself, why did you do this? Was it to solve your own or someone else’s problem? Or because you thought it would be fun? No shame in the second one, but it’s a lot harder to work backwards from that into a viable product.
Without knowing that, we don't know enough to give any realistic answer. Because businesses don't want "AI". They want solutions to their problems.