Question

1. if you like or love a post on facebook, what message does this send to the algorithm?

you have identified your tastes and want to see similar products.
you have chosen your brand and do not need to see similar products.
you are not going to follow brands on facebook, so advertising is wasted on your page.
you do not have many friends, so you tend to interact more with companies that people like.

Explanation:

Facebook's algorithm uses user interactions like liking/loving posts to learn preferences, then serves similar content or products aligned with those identified tastes. The other options do not reflect how this core algorithmic targeting works.

Answer:

You have identified your tastes and want to see similar products.