Question

the text on the left side (partially visible) seems to be about a story setting and elements, and on the right: what antagonist fits this story? options: a snowman that comes to life; a friendly dog that follows colin; a man breaking into the cabin

Explanation:

An antagonist is a force that opposes the protagonist. A "snowman that comes to life" or a "friendly dog" are not antagonistic (friendly dog is positive, snowman coming to life may not be opposing). A "snake getting into the cabin" would create a conflict/opposition for the protagonist (e.g., danger, need to deal with it), fitting the role of an antagonist.

Answer:

A snake getting into the cabin