Which of the following is not a true characteristic of a Chamber of Commerce?

The option that is not a true characteristic of a Chamber of Commerce is "It is open only to political party members." A Chamber of Commerce is an organization of businesses that aims to promote and protect the interests of its members. It is not a political organization and therefore should not be restricted to only political party members. The other options are true characteristics of a Chamber of Commerce: it is not for profit making, democratically administered, a voluntary organization, and independent of government control.