Is better for a child to learn a foreign language while they are in a primary rather than a secondary school because the best way to learn a language is when you still young that way you have more time to understand it . And ofc one of the mayor advantages are that it can help with jobs in the future.
I would go with: A theme is best written as statement because a theme is main thing of a story, the author could also use a statement in a story to make it seem more alive or more real.