11.

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

This expresses that I have changed from a bee-lover to a beekeeper, which is causally related to the above, so I can use so, and another paragraph can be added here, because this is describing another information, that is, the author as a beekeeper information. Instead "but", the front needs to be a negative expression, wrong. After it was all over, for instance, for example, has a wrong logical relationship with the above.