Is this a true or false question?
If so, it's false. You can have gonorrhea even though there may not be any symptoms. Always check with your doctor for verification, if concerned.
This applies to many other medical diseases as well.
I would say (A) seems like the most logical answer
The class that was exempt from taxes and military service was bonzes
The article refers to third parties as gadflies because third parties often bring attention to political, social, or national issues that neither major party wants to discuss.