<span>The theme is the "BIG IDEA." It is basically a message the poem, story, novel or any writing gives you. Example- The theme can be never lie to your parents. </span>
Answer: B
Explanation:
In all the other ones, you are speaking. Verbal essentially means spoken, so non verbal is going to be not spoken. Therefore B is the best answer.
You could use a topic such as "2 common breeds of dogs and their characteristics" or "How to raise a tomato plant from seed" or "Critical tips for surviving in the wilderness", etc. (Basically, you need to do it on a topic you are familiar with and interested in)