PLEASE HELP FAST!!

Some people in Hungary want their country to withdraw from the European
Union. Which of the following is the most likely reason for this?

A. They do not want open borders with the countries around them.

B. They do not want expanded markets for the products of their
farms.

C. They do not like giving up national control over their budget policies.

D. They do not like having to give up using their national language.