An apparel company known for its line of t-shirts and hoodies is trying to boost an accessories line it launched last year, but they can't seem to get it to pick up. They know they have sales, and they know they have visitors to the product page, but they can't connect the two, and retargeting their core audience doesn't seem to be working. They recently installed the Meta Pixel on the website. What are all the events they can now track?