The correct answer is: D. Neither I nor II is strong
Argument I is not strong because it does not provide any evidence that forcing legislators to resign from their profession would actually lead them to devote more time to the country. It is possible that they would simply find other ways to occupy their time, such as taking on additional paid work or pursuing hobbies.
Argument II is not strong because it is based on the assumption that nobody would contest elections if legislators were forced to resign from their profession. However, there is no evidence to support this assumption. It is possible that people would still be willing to run for office, even if they knew that they would have to give up their current profession.
In conclusion, neither argument I nor II is strong.