Name one state that borders Canada.

Pennsylvania is the correct choice because it is one of the U.S. states that shares a border with Canada. Located in the northeastern United States, Pennsylvania has a northern border that stretches along the Great Lakes, specifically Lake Erie, and also shares a border with the Canadian province of Ontario. This geographical position provides Pennsylvania with a direct connection to Canada through its waterways and land routes.

The other states mentioned in the options do not share a border with Canada. Texas is located in the southern part of the United States, bordered by Mexico to the south. Florida is situated at the southeastern tip of the country and does not touch Canada at all. California is located on the West Coast and does share a border with Canada, specifically with the province of British Columbia; however, it is not the correct answer among the provided choices based on the context of the question. Thus, Pennsylvania stands as the accurate response because it is part of the states with a direct geographical connection to Canada.