When using the Reddit Pixel, what metrics can you monitor?

The Reddit Pixel allows you to track various conversion events on your website, providing valuable insights into user behavior and campaign performance. "Registrations," "Adds to cart," and "Purchases" are all standard conversion events that can be monitored using the Reddit Pixel. By implementing the pixel, you can attribute these actions back to your Reddit ad campaigns, optimize your ad delivery, and understand your return on ad spend. Therefore, "All of the above" is the correct answer as the Reddit Pixel supports tracking these and other custom events.