Central idea: people in utopia care about the common good. which statement provides a critique of the central idea?

extra food and resources are given to poor communities.
more wrote utopia to encourage more equality in society.
slavery shows that not everyone in utopia is treated equally.
gold and silver chains are worn by enslaved people in utopia.

The statement that provides a critique of the central idea is "Slavery shows that not everyone in Utopia is treated equally".

The idea that "slavery shows that not everyone in Utopia is treated equally" functions as a counterargument to the central idea that "people in Utopia care about the common good". The 'common good' is a phrase used to refer to something that benefits all and slavery is far from contributing to everyone's well-being. Slavery violates human beings' rights since it forces people to be owned by other people and work hard for them without being paid for it. As slavery is still present in Utopia, the counterargument shows that not everyone in that country care about the common good and, for that reason, it is a valid critique to the central idea.

C. Slavery shows that not everyone in Utopia is treated equally.