Identify who sweden's significant trading partner was according to the lesson.

england
prussia
france
russia

According to the lesson, Sweden's significant trading partner was Russia.

According to the lesson, Sweden's significant trading partner was England.

To identify Sweden's significant trading partner according to the lesson, we can follow these steps:

1. Access the lesson or relevant sources of information that discuss Sweden's trading partners.
2. Look for information related to Sweden's historical trading patterns.
3. Pay attention to any mentions of specific countries that had significant trading relationships with Sweden during the mentioned period or context.
4. Cross-reference the countries mentioned in the options (England, Prussia, France, and Russia) with the information obtained in the lesson.
5. Determine which country was mentioned as one of Sweden's significant trading partners.

Please note that as an AI, I don't have access to specific lessons or information. However, by following these steps, you should be able to find the answer based on the lesson you have been studying.