Which of the following locations is it illegal to carry a concealed firearm in Iowa, even with a Permit to Carry Weapons?

It is illegal to carry a concealed firearm in schools in Iowa, even with a Permit to Carry Weapons. This is because schools are designated as "weapon-free zones" in the state, and carrying a firearm in a weapon-free zone is considered a felony offense. While it is generally legal to carry a concealed firearm in restaurants and state parks in Iowa with a permit, carrying a firearm in a school is not allowed. Additionally, the option "All of the above" would be incorrect because carrying a concealed firearm in schools is the only option listed that is illegal with a permit in Iowa.