What must applicants complete to obtain a Permit to Carry Weapons in Iowa?

To obtain a Permit to Carry Weapons in Iowa, applicants must complete a firearms safety training course. This option is the only one that specifically relates to the process of obtaining a permit to carry weapons. A drug test, while it may be required for certain jobs or licenses, is not mentioned in the question and does not pertain to the process of obtaining a permit. A personal interview with a sheriff and a written exam on local laws could potentially be part of the overall application process, but they are not the specific requirement for obtaining a permit to carry weapons. Therefore, option B is the best and most specific answer.