Which of the following represents a conflict between the supremacy clause and the tenth amendment?
a restaurateur claims undue hardship when meeting federal food-handling standards that cost more than meeting state standards.

a motorist sues the national government for damages when she has an accident driving on a poorly kept federal highway in montana.

students petition their school district when the state government cuts funding for an annual skateboarding competition.

the daughter of a divorced couple sues her father when he will not allow her to live in a foreign country with her mother.